Finding the Fourth Proportional to 22,863.47, 31,552.81 and 12,791.31

Step by Step Solution

1. Step 1: Write the proportion equation
   22,863.47 : 31,552.81 = 12,791.31 : x
2. Step 2: Convert to fraction form
   22,863.47/31,552.81 = 12,791.31/x
3. Step 3: Cross multiply
   22,863.47x = 31,552.81 × 12,791.31
4. Step 4: Simplify right side
   22,863.47x = 403,601,552.36
5. Step 5: Solve for x
   x = 403,601,552.36/22,863.47
6. Step 6: Final answer
   x = 17,652.69