Finding the Fourth Proportional to 8,574.50, 12,862.24 and 3,309.53

Step by Step Solution

1. Step 1: Write the proportion equation
   8,574.50 : 12,862.24 = 3,309.53 : x
2. Step 2: Convert to fraction form
   8,574.50/12,862.24 = 3,309.53/x
3. Step 3: Cross multiply
   8,574.50x = 12,862.24 × 3,309.53
4. Step 4: Simplify right side
   8,574.50x = 42,567,969.15
5. Step 5: Solve for x
   x = 42,567,969.15/8,574.50
6. Step 6: Final answer
   x = 4,964.49