Spyros Solon Skouras, a shipping magnate who led exhibitor the Skouras Theaters Corp. early in his career and was the son of Spyros P. Skouras, president of 20th Century Fox from 1942-62, died of natural causes on Friday, Jan. 18, in Greenwich, Conn. He was 89.Spyros S. Skouras was owner, chairman and CEO of Admiralty Enterprises, one the largest American flag shipping fleets, for 40 years. Earlier, however, he was president and CEO of Skouras Theaters, a circuit with 100 theaters. He was also president and CEO of Ampex Stereo Sound for Theaters and the Triton Production Co., which produced films in Hollywood. Born in St. Louis, Skouras enlisted in the Army Pictorial Division in 1942 and graduated from Yale in 1948. He was most recently founder, chairman and CEO of Olatec Industries and was also a director of the Alfred E. Smith Foundation, the USO and United Cerebral Palsy. His wife Barbara and daughter Cassandra preceded him in death. Survivors include two sons and a daughter as well as a grandson and three granddaughters.