79.490.  Fourth class city disincorporated, how — election, notice. — 1.  The county governing body of any county in which a city of the fourth class is located shall disincorporate such city as provided in this section.

  2.  The county governing body shall order an election upon the question of disincorporation of a fourth class city upon petition of twenty-five percent of the voters of the city.

  3.  The county governing body shall give notice of the election by publication in a newspaper of general circulation published in the city or, if there is no such newspaper in the city, then in the newspaper in the county published nearest the city.  The notice shall contain a copy of the petition and the names of the petitioners.  No election on the question of disincorporation shall be held until the notice has been published for four weeks successively.

  4.  The question shall be submitted in substantially the following form:

  5.  Upon the affirmative vote of a majority of those persons voting on the question, the county governing body shall disincorporate the city.