Quadrilateral \(abcd\) is similiar to quadrilateral \(efgh\). the lengths of the three longest sides in quadrilateral \(abcd\) are 24 feet, 16 feet, and 12 feet long. if the two shortest sides of quadrilateral \(efgh\) are 9 feet long and 18 feet long, how long is the 4th side on quadrilateral \(abcd\)?