Finding the Fourth Proportional to 8,087.75, 12,131.71 and 2,540.98

Step by Step Solution

1. Step 1: Write the proportion equation
   8,087.75 : 12,131.71 = 2,540.98 : x
2. Step 2: Convert to fraction form
   8,087.75/12,131.71 = 2,540.98/x
3. Step 3: Cross multiply
   8,087.75x = 12,131.71 × 2,540.98
4. Step 4: Simplify right side
   8,087.75x = 30,826,373.05
5. Step 5: Solve for x
   x = 30,826,373.05/8,087.75
6. Step 6: Final answer
   x = 3,811.49