Finding the Fourth Proportional to 12,264.29, 18,396.60 and 3,499.20

Step by Step Solution

1. Step 1: Write the proportion equation
   12,264.29 : 18,396.60 = 3,499.20 : x
2. Step 2: Convert to fraction form
   12,264.29/18,396.60 = 3,499.20/x
3. Step 3: Cross multiply
   12,264.29x = 18,396.60 × 3,499.20
4. Step 4: Simplify right side
   12,264.29x = 64,373,365.22
5. Step 5: Solve for x
   x = 64,373,365.22/12,264.29
6. Step 6: Final answer
   x = 5,248.85