Finding the Fourth Proportional to 115,443.16, 159,310.74 and 64,452.88

Step by Step Solution

1. Step 1: Write the proportion equation
   115,443.16 : 159,310.74 = 64,452.88 : x
2. Step 2: Convert to fraction form
   115,443.16/159,310.74 = 64,452.88/x
3. Step 3: Cross multiply
   115,443.16x = 159,310.74 × 64,452.88
4. Step 4: Simplify right side
   115,443.16x = 10,268,036,007.93
5. Step 5: Solve for x
   x = 10,268,036,007.93/115,443.16
6. Step 6: Final answer
   x = 88,944.52