Finding the Fourth Proportional to 31,951.31, 47,912.29 and 10,882.78

Step by Step Solution

1. Step 1: Write the proportion equation
   31,951.31 : 47,912.29 = 10,882.78 : x
2. Step 2: Convert to fraction form
   31,951.31/47,912.29 = 10,882.78/x
3. Step 3: Cross multiply
   31,951.31x = 47,912.29 × 10,882.78
4. Step 4: Simplify right side
   31,951.31x = 521,418,764.38
5. Step 5: Solve for x
   x = 521,418,764.38/31,951.31
6. Step 6: Final answer
   x = 16,319.17