Finding the Fourth Proportional to 31,337.50, 47,008.68 and 10,561

Step by Step Solution

1. Step 1: Write the proportion equation
   31,337.50 : 47,008.68 = 10,561 : x
2. Step 2: Convert to fraction form
   31,337.50/47,008.68 = 10,561/x
3. Step 3: Cross multiply
   31,337.50x = 47,008.68 × 10,561
4. Step 4: Simplify right side
   31,337.50x = 496,458,669.48
5. Step 5: Solve for x
   x = 496,458,669.48/31,337.50
6. Step 6: Final answer
   x = 15,842.32