Finding the Fourth Proportional to 89,488.55, 133,940.75 and 65,789.82

Step by Step Solution

1. Step 1: Write the proportion equation
   89,488.55 : 133,940.75 = 65,789.82 : x
2. Step 2: Convert to fraction form
   89,488.55/133,940.75 = 65,789.82/x
3. Step 3: Cross multiply
   89,488.55x = 133,940.75 × 65,789.82
4. Step 4: Simplify right side
   89,488.55x = 8,811,938,253.21
5. Step 5: Solve for x
   x = 8,811,938,253.21/89,488.55
6. Step 6: Final answer
   x = 98,470.01