Finding the Fourth Proportional to 115,443.23, 159,310.15 and 64,456.83

Step by Step Solution

1. Step 1: Write the proportion equation
   115,443.23 : 159,310.15 = 64,456.83 : x
2. Step 2: Convert to fraction form
   115,443.23/159,310.15 = 64,456.83/x
3. Step 3: Cross multiply
   115,443.23x = 159,310.15 × 64,456.83
4. Step 4: Simplify right side
   115,443.23x = 10,268,627,965.74
5. Step 5: Solve for x
   x = 10,268,627,965.74/115,443.23
6. Step 6: Final answer
   x = 88,949.59