Jan. 1 Aug. 7 Dec. 11 Purchase Periodic Inventory Using FIFO, LIFO, and weighted Average Cost Methods The units of an item avallable for sale during the year were as follows: Inventory 5 units at $3,500 $17,500 Purchase 18 units at $3,600 64,800 10 units at $3,800 38,000 33 units $120,300 There are 18 units of the item in the physical Inventory at December 31. The periodic Inventory system is used. Determine the inventory cost using (a) the first-In, first-out (FIFO) method; (b) the last-in, first-out (LIFO) method; and (c) the weighted average cost method (Round per unit cost to two decimal places and your final answer to the nearest whoda dollar). a. First-in, first-out (FIFO) 68400 b. Last-in, first-out (LIFO) c. Weighted average cost