Finding the Fourth Proportional to 89,352.18, 133,962.66 and 42,637.86

Step by Step Solution

1. Step 1: Write the proportion equation
   89,352.18 : 133,962.66 = 42,637.86 : x
2. Step 2: Convert to fraction form
   89,352.18/133,962.66 = 42,637.86/x
3. Step 3: Cross multiply
   89,352.18x = 133,962.66 × 42,637.86
4. Step 4: Simplify right side
   89,352.18x = 5,711,881,142.31
5. Step 5: Solve for x
   x = 5,711,881,142.31/89,352.18
6. Step 6: Final answer
   x = 63,925.48