Finding the Fourth Proportional to 22,632.38, 31,231.74 and 12,561.24

Step by Step Solution

1. Step 1: Write the proportion equation
   22,632.38 : 31,231.74 = 12,561.24 : x
2. Step 2: Convert to fraction form
   22,632.38/31,231.74 = 12,561.24/x
3. Step 3: Cross multiply
   22,632.38x = 31,231.74 × 12,561.24
4. Step 4: Simplify right side
   22,632.38x = 392,309,381.76
5. Step 5: Solve for x
   x = 392,309,381.76/22,632.38
6. Step 6: Final answer
   x = 17,333.99