Finding the Fourth Proportional to 115,250.50, 159,045.69 and 64,951.30

Step by Step Solution

1. Step 1: Write the proportion equation
   115,250.50 : 159,045.69 = 64,951.30 : x
2. Step 2: Convert to fraction form
   115,250.50/159,045.69 = 64,951.30/x
3. Step 3: Cross multiply
   115,250.50x = 159,045.69 × 64,951.30
4. Step 4: Simplify right side
   115,250.50x = 10,330,224,324.90
5. Step 5: Solve for x
   x = 10,330,224,324.90/115,250.50
6. Step 6: Final answer
   x = 89,632.79