Finding the Fourth Proportional to 88,680.10, 133,020.15 and 42,024.10

Step by Step Solution

1. Step 1: Write the proportion equation
   88,680.10 : 133,020.15 = 42,024.10 : x
2. Step 2: Convert to fraction form
   88,680.10/133,020.15 = 42,024.10/x
3. Step 3: Cross multiply
   88,680.10x = 133,020.15 × 42,024.10
4. Step 4: Simplify right side
   88,680.10x = 5,590,052,085.62
5. Step 5: Solve for x
   x = 5,590,052,085.62/88,680.10
6. Step 6: Final answer
   x = 63,036.15