Finding the Fourth Proportional to 31,404.38, 47,113.47 and 10,350.90

Step by Step Solution

1. Step 1: Write the proportion equation
   31,404.38 : 47,113.47 = 10,350.90 : x
2. Step 2: Convert to fraction form
   31,404.38/47,113.47 = 10,350.90/x
3. Step 3: Cross multiply
   31,404.38x = 47,113.47 × 10,350.90
4. Step 4: Simplify right side
   31,404.38x = 487,666,816.62
5. Step 5: Solve for x
   x = 487,666,816.62/31,404.38
6. Step 6: Final answer
   x = 15,528.63