Finding the Fourth Proportional to 31,738.91, 47,612.45 and 10,669.86

Step by Step Solution

1. Step 1: Write the proportion equation
   31,738.91 : 47,612.45 = 10,669.86 : x
2. Step 2: Convert to fraction form
   31,738.91/47,612.45 = 10,669.86/x
3. Step 3: Cross multiply
   31,738.91x = 47,612.45 × 10,669.86
4. Step 4: Simplify right side
   31,738.91x = 508,018,202.43
5. Step 5: Solve for x
   x = 508,018,202.43/31,738.91
6. Step 6: Final answer
   x = 16,006.17