Finding the Fourth Proportional to 72,470.55, 108,737.12 and 39,214.05

Step by Step Solution

1. Step 1: Write the proportion equation
   72,470.55 : 108,737.12 = 39,214.05 : x
2. Step 2: Convert to fraction form
   72,470.55/108,737.12 = 39,214.05/x
3. Step 3: Cross multiply
   72,470.55x = 108,737.12 × 39,214.05
4. Step 4: Simplify right side
   72,470.55x = 4,264,022,860.54
5. Step 5: Solve for x
   x = 4,264,022,860.54/72,470.55
6. Step 6: Final answer
   x = 58,838.01