Finding the Fourth Proportional to 88,812.38, 133,284.32 and 42,065.39

Step by Step Solution

1. Step 1: Write the proportion equation
   88,812.38 : 133,284.32 = 42,065.39 : x
2. Step 2: Convert to fraction form
   88,812.38/133,284.32 = 42,065.39/x
3. Step 3: Cross multiply
   88,812.38x = 133,284.32 × 42,065.39
4. Step 4: Simplify right side
   88,812.38x = 5,606,656,024.94
5. Step 5: Solve for x
   x = 5,606,656,024.94/88,812.38
6. Step 6: Final answer
   x = 63,129.22