Finding the Fourth Proportional to 115,233.12, 159,016.33 and 64,251.42

Step by Step Solution

1. Step 1: Write the proportion equation
   115,233.12 : 159,016.33 = 64,251.42 : x
2. Step 2: Convert to fraction form
   115,233.12/159,016.33 = 64,251.42/x
3. Step 3: Cross multiply
   115,233.12x = 159,016.33 × 64,251.42
4. Step 4: Simplify right side
   115,233.12x = 10,217,025,005.69
5. Step 5: Solve for x
   x = 10,217,025,005.69/115,233.12
6. Step 6: Final answer
   x = 88,663.96