Lew just purchased $67,600 of equipment that is classified as 5-year MACRS property. The MACRS rates are 20 percent, 32 percent, 19.2 percent, 11.52 percent, 11.52 percent, and 5.76 percent for Years 1 to 6, respectively. What will the book value of this equipment be at the end of four years should he decide to resell the equipment at that point in time?