Finding the Fourth Proportional to 8,086.51, 12,131.47 and 2,540.41

Step by Step Solution

1. Step 1: Write the proportion equation
   8,086.51 : 12,131.47 = 2,540.41 : x
2. Step 2: Convert to fraction form
   8,086.51/12,131.47 = 2,540.41/x
3. Step 3: Cross multiply
   8,086.51x = 12,131.47 × 2,540.41
4. Step 4: Simplify right side
   8,086.51x = 30,818,948.79
5. Step 5: Solve for x
   x = 30,818,948.79/8,086.51
6. Step 6: Final answer
   x = 3,811.16