Finding the Fourth Proportional to 52,715.38, 72,740.04 and 31,490.14

Step by Step Solution

1. Step 1: Write the proportion equation
   52,715.38 : 72,740.04 = 31,490.14 : x
2. Step 2: Convert to fraction form
   52,715.38/72,740.04 = 31,490.14/x
3. Step 3: Cross multiply
   52,715.38x = 72,740.04 × 31,490.14
4. Step 4: Simplify right side
   52,715.38x = 2,290,594,043.21
5. Step 5: Solve for x
   x = 2,290,594,043.21/52,715.38
6. Step 6: Final answer
   x = 43,452.10