Finding the Fourth Proportional to 72,414.34, 99,913.02 and 43,711.31

Step by Step Solution

1. Step 1: Write the proportion equation
   72,414.34 : 99,913.02 = 43,711.31 : x
2. Step 2: Convert to fraction form
   72,414.34/99,913.02 = 43,711.31/x
3. Step 3: Cross multiply
   72,414.34x = 99,913.02 × 43,711.31
4. Step 4: Simplify right side
   72,414.34x = 4,367,328,990.26
5. Step 5: Solve for x
   x = 4,367,328,990.26/72,414.34
6. Step 6: Final answer
   x = 60,310.28