Finding the Fourth Proportional to 31,468.96, 47,204.56 and 10,689.76

Step by Step Solution

1. Step 1: Write the proportion equation
   31,468.96 : 47,204.56 = 10,689.76 : x
2. Step 2: Convert to fraction form
   31,468.96/47,204.56 = 10,689.76/x
3. Step 3: Cross multiply
   31,468.96x = 47,204.56 × 10,689.76
4. Step 4: Simplify right side
   31,468.96x = 504,605,417.31
5. Step 5: Solve for x
   x = 504,605,417.31/31,468.96
6. Step 6: Final answer
   x = 16,035.02