Finding the Fourth Proportional to 115,123.28, 158,867.72 and 64,135.94

Step by Step Solution

1. Step 1: Write the proportion equation
   115,123.28 : 158,867.72 = 64,135.94 : x
2. Step 2: Convert to fraction form
   115,123.28/158,867.72 = 64,135.94/x
3. Step 3: Cross multiply
   115,123.28x = 158,867.72 × 64,135.94
4. Step 4: Simplify right side
   115,123.28x = 10,189,130,557.86
5. Step 5: Solve for x
   x = 10,189,130,557.86/115,123.28
6. Step 6: Final answer
   x = 88,506.26