Finding the Fourth Proportional to 115,424.50, 159,293.83 and 64,447.25

Step by Step Solution

1. Step 1: Write the proportion equation
   115,424.50 : 159,293.83 = 64,447.25 : x
2. Step 2: Convert to fraction form
   115,424.50/159,293.83 = 64,447.25/x
3. Step 3: Cross multiply
   115,424.50x = 159,293.83 × 64,447.25
4. Step 4: Simplify right side
   115,424.50x = 10,266,049,285.47
5. Step 5: Solve for x
   x = 10,266,049,285.47/115,424.50
6. Step 6: Final answer
   x = 88,941.68