Finding the Fourth Proportional to 8,127.27, 12,191.33 and 2,581.05

Step by Step Solution

1. Step 1: Write the proportion equation
   8,127.27 : 12,191.33 = 2,581.05 : x
2. Step 2: Convert to fraction form
   8,127.27/12,191.33 = 2,581.05/x
3. Step 3: Cross multiply
   8,127.27x = 12,191.33 × 2,581.05
4. Step 4: Simplify right side
   8,127.27x = 31,466,419.39
5. Step 5: Solve for x
   x = 31,466,419.39/8,127.27
6. Step 6: Final answer
   x = 3,871.71