Finding the Fourth Proportional to 91,645.78, 137,468.58 and 25,086.46

Step by Step Solution

1. Step 1: Write the proportion equation
   91,645.78 : 137,468.58 = 25,086.46 : x
2. Step 2: Convert to fraction form
   91,645.78/137,468.58 = 25,086.46/x
3. Step 3: Cross multiply
   91,645.78x = 137,468.58 × 25,086.46
4. Step 4: Simplify right side
   91,645.78x = 3,448,600,033.43
5. Step 5: Solve for x
   x = 3,448,600,033.43/91,645.78
6. Step 6: Final answer
   x = 37,629.67