Finding the Fourth Proportional to 91,665.18, 137,497.86 and 25,105.86

Step by Step Solution

1. Step 1: Write the proportion equation
   91,665.18 : 137,497.86 = 25,105.86 : x
2. Step 2: Convert to fraction form
   91,665.18/137,497.86 = 25,105.86/x
3. Step 3: Cross multiply
   91,665.18x = 137,497.86 × 25,105.86
4. Step 4: Simplify right side
   91,665.18x = 3,452,002,023.46
5. Step 5: Solve for x
   x = 3,452,002,023.46/91,665.18
6. Step 6: Final answer
   x = 37,658.81