Finding the Fourth Proportional to 22,612.50, 31,205.25 and 13,182.89

Step by Step Solution

1. Step 1: Write the proportion equation
   22,612.50 : 31,205.25 = 13,182.89 : x
2. Step 2: Convert to fraction form
   22,612.50/31,205.25 = 13,182.89/x
3. Step 3: Cross multiply
   22,612.50x = 31,205.25 × 13,182.89
4. Step 4: Simplify right side
   22,612.50x = 411,375,222.15
5. Step 5: Solve for x
   x = 411,375,222.15/22,612.50
6. Step 6: Final answer
   x = 18,192.38