Finding the Fourth Proportional to 115,301.59, 159,116.14 and 65,000.59

Step by Step Solution

1. Step 1: Write the proportion equation
   115,301.59 : 159,116.14 = 65,000.59 : x
2. Step 2: Convert to fraction form
   115,301.59/159,116.14 = 65,000.59/x
3. Step 3: Cross multiply
   115,301.59x = 159,116.14 × 65,000.59
4. Step 4: Simplify right side
   115,301.59x = 10,342,642,978.52
5. Step 5: Solve for x
   x = 10,342,642,978.52/115,301.59
6. Step 6: Final answer
   x = 89,700.78