Finding the Fourth Proportional to 8,328.24, 12,490.56 and 3,396.60

Step by Step Solution

1. Step 1: Write the proportion equation
   8,328.24 : 12,490.56 = 3,396.60 : x
2. Step 2: Convert to fraction form
   8,328.24/12,490.56 = 3,396.60/x
3. Step 3: Cross multiply
   8,328.24x = 12,490.56 × 3,396.60
4. Step 4: Simplify right side
   8,328.24x = 42,425,436.10
5. Step 5: Solve for x
   x = 42,425,436.10/8,328.24
6. Step 6: Final answer
   x = 5,094.17