Finding the Fourth Proportional to 115,258.10, 159,055.49 and 64,271.43

Step by Step Solution

1. Step 1: Write the proportion equation
   115,258.10 : 159,055.49 = 64,271.43 : x
2. Step 2: Convert to fraction form
   115,258.10/159,055.49 = 64,271.43/x
3. Step 3: Cross multiply
   115,258.10x = 159,055.49 × 64,271.43
4. Step 4: Simplify right side
   115,258.10x = 10,222,723,470.29
5. Step 5: Solve for x
   x = 10,222,723,470.29/115,258.10
6. Step 6: Final answer
   x = 88,694.19