Finding the Fourth Proportional to 115,293.39, 159,105.09 and 64,309.42

Step by Step Solution

1. Step 1: Write the proportion equation
   115,293.39 : 159,105.09 = 64,309.42 : x
2. Step 2: Convert to fraction form
   115,293.39/159,105.09 = 64,309.42/x
3. Step 3: Cross multiply
   115,293.39x = 159,105.09 × 64,309.42
4. Step 4: Simplify right side
   115,293.39x = 10,231,956,056.95
5. Step 5: Solve for x
   x = 10,231,956,056.95/115,293.39
6. Step 6: Final answer
   x = 88,747.12