Finding the Fourth Proportional to 115,292.39, 159,103.71 and 64,308.42

Step by Step Solution

1. Step 1: Write the proportion equation
   115,292.39 : 159,103.71 = 64,308.42 : x
2. Step 2: Convert to fraction form
   115,292.39/159,103.71 = 64,308.42/x
3. Step 3: Cross multiply
   115,292.39x = 159,103.71 × 64,308.42
4. Step 4: Simplify right side
   115,292.39x = 10,231,707,884.70
5. Step 5: Solve for x
   x = 10,231,707,884.70/115,292.39
6. Step 6: Final answer
   x = 88,745.74