Finding the Fourth Proportional to 115,359.80, 159,196.50 and 65,058.68

Step by Step Solution

1. Step 1: Write the proportion equation
   115,359.80 : 159,196.50 = 65,058.68 : x
2. Step 2: Convert to fraction form
   115,359.80/159,196.50 = 65,058.68/x
3. Step 3: Cross multiply
   115,359.80x = 159,196.50 × 65,058.68
4. Step 4: Simplify right side
   115,359.80x = 10,357,114,150.62
5. Step 5: Solve for x
   x = 10,357,114,150.62/115,359.80
6. Step 6: Final answer
   x = 89,780.96