Finding the Fourth Proportional to 31,522.47, 47,285.33 and 8,149.11

Step by Step Solution

1. Step 1: Write the proportion equation
   31,522.47 : 47,285.33 = 8,149.11 : x
2. Step 2: Convert to fraction form
   31,522.47/47,285.33 = 8,149.11/x
3. Step 3: Cross multiply
   31,522.47x = 47,285.33 × 8,149.11
4. Step 4: Simplify right side
   31,522.47x = 385,333,314.81
5. Step 5: Solve for x
   x = 385,333,314.81/31,522.47
6. Step 6: Final answer
   x = 12,224.08