Finding the Fourth Proportional to 31,715.28, 47,293.74 and 29,499.12

Step by Step Solution

1. Step 1: Write the proportion equation
   31,715.28 : 47,293.74 = 29,499.12 : x
2. Step 2: Convert to fraction form
   31,715.28/47,293.74 = 29,499.12/x
3. Step 3: Cross multiply
   31,715.28x = 47,293.74 × 29,499.12
4. Step 4: Simplify right side
   31,715.28x = 1,395,123,711.51
5. Step 5: Solve for x
   x = 1,395,123,711.51/31,715.28
6. Step 6: Final answer
   x = 43,989.01