Finding the Fourth Proportional to 115,353.40, 159,150.43 and 64,357.88

Step by Step Solution

1. Step 1: Write the proportion equation
   115,353.40 : 159,150.43 = 64,357.88 : x
2. Step 2: Convert to fraction form
   115,353.40/159,150.43 = 64,357.88/x
3. Step 3: Cross multiply
   115,353.40x = 159,150.43 × 64,357.88
4. Step 4: Simplify right side
   115,353.40x = 10,242,584,275.89
5. Step 5: Solve for x
   x = 10,242,584,275.89/115,353.40
6. Step 6: Final answer
   x = 88,793.09