Finding the Fourth Proportional to 22,632.63, 31,233.15 and 12,561.72

Step by Step Solution

1. Step 1: Write the proportion equation
   22,632.63 : 31,233.15 = 12,561.72 : x
2. Step 2: Convert to fraction form
   22,632.63/31,233.15 = 12,561.72/x
3. Step 3: Cross multiply
   22,632.63x = 31,233.15 × 12,561.72
4. Step 4: Simplify right side
   22,632.63x = 392,342,085.02
5. Step 5: Solve for x
   x = 392,342,085.02/22,632.63
6. Step 6: Final answer
   x = 17,335.24