Finding the Fourth Proportional to 8,571.18, 12,851.59 and 5,606.05

Step by Step Solution

1. Step 1: Write the proportion equation
   8,571.18 : 12,851.59 = 5,606.05 : x
2. Step 2: Convert to fraction form
   8,571.18/12,851.59 = 5,606.05/x
3. Step 3: Cross multiply
   8,571.18x = 12,851.59 × 5,606.05
4. Step 4: Simplify right side
   8,571.18x = 72,046,656.12
5. Step 5: Solve for x
   x = 72,046,656.12/8,571.18
6. Step 6: Final answer
   x = 8,405.69