Finding the Fourth Proportional to 103,042.18, 142,058.58 and 88,095.40

Step by Step Solution

1. Step 1: Write the proportion equation
   103,042.18 : 142,058.58 = 88,095.40 : x
2. Step 2: Convert to fraction form
   103,042.18/142,058.58 = 88,095.40/x
3. Step 3: Cross multiply
   103,042.18x = 142,058.58 × 88,095.40
4. Step 4: Simplify right side
   103,042.18x = 12,514,707,428.53
5. Step 5: Solve for x
   x = 12,514,707,428.53/103,042.18
6. Step 6: Final answer
   x = 121,452.28