Finding the Fourth Proportional to 31,758.86, 47,638.49 and 9,572.15

Step by Step Solution

1. Step 1: Write the proportion equation
   31,758.86 : 47,638.49 = 9,572.15 : x
2. Step 2: Convert to fraction form
   31,758.86/47,638.49 = 9,572.15/x
3. Step 3: Cross multiply
   31,758.86x = 47,638.49 × 9,572.15
4. Step 4: Simplify right side
   31,758.86x = 456,002,772.05
5. Step 5: Solve for x
   x = 456,002,772.05/31,758.86
6. Step 6: Final answer
   x = 14,358.29