Finding the Fourth Proportional to 8,328.57, 12,491.24 and 2,405.04

Step by Step Solution

1. Step 1: Write the proportion equation
   8,328.57 : 12,491.24 = 2,405.04 : x
2. Step 2: Convert to fraction form
   8,328.57/12,491.24 = 2,405.04/x
3. Step 3: Cross multiply
   8,328.57x = 12,491.24 × 2,405.04
4. Step 4: Simplify right side
   8,328.57x = 30,041,943.25
5. Step 5: Solve for x
   x = 30,041,943.25/8,328.57
6. Step 6: Final answer
   x = 3,607.09