Finding the Fourth Proportional to 22,863.31, 31,552.59 and 12,791.15

Step by Step Solution

1. Step 1: Write the proportion equation
   22,863.31 : 31,552.59 = 12,791.15 : x
2. Step 2: Convert to fraction form
   22,863.31/31,552.59 = 12,791.15/x
3. Step 3: Cross multiply
   22,863.31x = 31,552.59 × 12,791.15
4. Step 4: Simplify right side
   22,863.31x = 403,593,753.82
5. Step 5: Solve for x
   x = 403,593,753.82/22,863.31
6. Step 6: Final answer
   x = 17,652.47