Finding the Fourth Proportional to 89,269.47, 133,838.58 and 42,555.15

Step by Step Solution

1. Step 1: Write the proportion equation
   89,269.47 : 133,838.58 = 42,555.15 : x
2. Step 2: Convert to fraction form
   89,269.47/133,838.58 = 42,555.15/x
3. Step 3: Cross multiply
   89,269.47x = 133,838.58 × 42,555.15
4. Step 4: Simplify right side
   89,269.47x = 5,695,520,847.69
5. Step 5: Solve for x
   x = 5,695,520,847.69/89,269.47
6. Step 6: Final answer
   x = 63,801.44