Finding the Fourth Proportional to 8,571.47, 12,854.43 and 2,726.71

Step by Step Solution

1. Step 1: Write the proportion equation
   8,571.47 : 12,854.43 = 2,726.71 : x
2. Step 2: Convert to fraction form
   8,571.47/12,854.43 = 2,726.71/x
3. Step 3: Cross multiply
   8,571.47x = 12,854.43 × 2,726.71
4. Step 4: Simplify right side
   8,571.47x = 35,050,270.69
5. Step 5: Solve for x
   x = 35,050,270.69/8,571.47
6. Step 6: Final answer
   x = 4,089.18