20-9-405. Proportional joint ownership -- disposition of money. The facility constructed under 20-9-404 must be jointly owned by the school districts or other political subdivisions contributing to its construction in proportion to the contribution of each political subdivision. The sale or other disposition of a district's interest in the facility must be made in accordance with 20-6-604. Money received from the sale or disposition of a district's interest in a facility must be credited to the debt service fund, building fund, general fund, or any combination of these three funds, at the discretion of the trustees.