Finding the Fourth Proportional to 72,479.39, 108,734.71 and 21,874.19

Step by Step Solution

1. Step 1: Write the proportion equation
   72,479.39 : 108,734.71 = 21,874.19 : x
2. Step 2: Convert to fraction form
   72,479.39/108,734.71 = 21,874.19/x
3. Step 3: Cross multiply
   72,479.39x = 108,734.71 × 21,874.19
4. Step 4: Simplify right side
   72,479.39x = 2,378,483,278.85
5. Step 5: Solve for x
   x = 2,378,483,278.85/72,479.39
6. Step 6: Final answer
   x = 32,816.00