Finding the Fourth Proportional to 6,223.97, 8,589.12 and 3,571.31

Step by Step Solution

1. Step 1: Write the proportion equation
   6,223.97 : 8,589.12 = 3,571.31 : x
2. Step 2: Convert to fraction form
   6,223.97/8,589.12 = 3,571.31/x
3. Step 3: Cross multiply
   6,223.97x = 8,589.12 × 3,571.31
4. Step 4: Simplify right side
   6,223.97x = 30,674,410.15
5. Step 5: Solve for x
   x = 30,674,410.15/6,223.97
6. Step 6: Final answer
   x = 4,928.43