Finding the Fourth Proportional to 115,702.24, 159,672.72 and 65,404.48

Step by Step Solution

1. Step 1: Write the proportion equation
   115,702.24 : 159,672.72 = 65,404.48 : x
2. Step 2: Convert to fraction form
   115,702.24/159,672.72 = 65,404.48/x
3. Step 3: Cross multiply
   115,702.24x = 159,672.72 × 65,404.48
4. Step 4: Simplify right side
   115,702.24x = 10,443,311,221.79
5. Step 5: Solve for x
   x = 10,443,311,221.79/115,702.24
6. Step 6: Final answer
   x = 90,260.23