Julie Steward Is MissJulie Steward, 17-year-old daughter of Mr. and Mrs.Charles Steward of 19000 South Anthony avenue, Matteson, was named fourth runner-up in the Miss Illinois Teen-Ager 1975 pageant held recently in Pioneer park, Aurora.The winner, Robin Lucker of Aurora, will represent the state in the 16th annual Miss American Teen-Ager pageant, part of an August 24-28 stay at the Fontainebleau hotel in Miami Beach, Fla., for all state winners. The national pageant willRunner-lJpbe televised by ABC.Miss Steward's entrance into the state competition was sponsored by Maros’ McDonald's restaurant of Matteson.Julie placed fifth out of 101 entrants in the Illinois contest. First runner-up was Dinky Wilkes, 17, of Barrington Miss lacker is also 17 years old.The second and third runners-up, both 16, are Kimberly Maren of St. Charles and Jill Ziske of Arlington Heights.