Finding the Fourth Proportional to 115,333.20, 159,132.60 and 65,022.48

Step by Step Solution

1. Step 1: Write the proportion equation
   115,333.20 : 159,132.60 = 65,022.48 : x
2. Step 2: Convert to fraction form
   115,333.20/159,132.60 = 65,022.48/x
3. Step 3: Cross multiply
   115,333.20x = 159,132.60 × 65,022.48
4. Step 4: Simplify right side
   115,333.20x = 10,347,196,300.85
5. Step 5: Solve for x
   x = 10,347,196,300.85/115,333.20
6. Step 6: Final answer
   x = 89,715.68