Finding the Fourth Proportional to 91,666.18, 137,499.36 and 25,106.86

Step by Step Solution

1. Step 1: Write the proportion equation
   91,666.18 : 137,499.36 = 25,106.86 : x
2. Step 2: Convert to fraction form
   91,666.18/137,499.36 = 25,106.86/x
3. Step 3: Cross multiply
   91,666.18x = 137,499.36 × 25,106.86
4. Step 4: Simplify right side
   91,666.18x = 3,452,177,181.61
5. Step 5: Solve for x
   x = 3,452,177,181.61/91,666.18
6. Step 6: Final answer
   x = 37,660.31