Finding the Fourth Proportional to 22,632, 31,233.12 and 12,696

Step by Step Solution

1. Step 1: Write the proportion equation
   22,632 : 31,233.12 = 12,696 : x
2. Step 2: Convert to fraction form
   22,632/31,233.12 = 12,696/x
3. Step 3: Cross multiply
   22,632x = 31,233.12 × 12,696
4. Step 4: Simplify right side
   22,632x = 396,535,691.52
5. Step 5: Solve for x
   x = 396,535,691.52/22,632
6. Step 6: Final answer
   x = 17,521.02