Finding the Fourth Proportional to 91,695.24, 137,550.15 and 39,105.18

Step by Step Solution

1. Step 1: Write the proportion equation
   91,695.24 : 137,550.15 = 39,105.18 : x
2. Step 2: Convert to fraction form
   91,695.24/137,550.15 = 39,105.18/x
3. Step 3: Cross multiply
   91,695.24x = 137,550.15 × 39,105.18
4. Step 4: Simplify right side
   91,695.24x = 5,378,923,374.78
5. Step 5: Solve for x
   x = 5,378,923,374.78/91,695.24
6. Step 6: Final answer
   x = 58,660.88