Finding the Fourth Proportional to 115,047.96, 158,765.79 and 64,061.31

Step by Step Solution

1. Step 1: Write the proportion equation
   115,047.96 : 158,765.79 = 64,061.31 : x
2. Step 2: Convert to fraction form
   115,047.96/158,765.79 = 64,061.31/x
3. Step 3: Cross multiply
   115,047.96x = 158,765.79 × 64,061.31
4. Step 4: Simplify right side
   115,047.96x = 10,170,744,490.58
5. Step 5: Solve for x
   x = 10,170,744,490.58/115,047.96
6. Step 6: Final answer
   x = 88,404.39