Finding the Fourth Proportional to 8,571.04, 12,856.42 and 2,727.57

Step by Step Solution

1. Step 1: Write the proportion equation
   8,571.04 : 12,856.42 = 2,727.57 : x
2. Step 2: Convert to fraction form
   8,571.04/12,856.42 = 2,727.57/x
3. Step 3: Cross multiply
   8,571.04x = 12,856.42 × 2,727.57
4. Step 4: Simplify right side
   8,571.04x = 35,066,785.50
5. Step 5: Solve for x
   x = 35,066,785.50/8,571.04
6. Step 6: Final answer
   x = 4,091.31