Finding the Fourth Proportional to 12,268.32, 18,404.94 and 3,949.20

Step by Step Solution

1. Step 1: Write the proportion equation
   12,268.32 : 18,404.94 = 3,949.20 : x
2. Step 2: Convert to fraction form
   12,268.32/18,404.94 = 3,949.20/x
3. Step 3: Cross multiply
   12,268.32x = 18,404.94 × 3,949.20
4. Step 4: Simplify right side
   12,268.32x = 72,684,789.05
5. Step 5: Solve for x
   x = 72,684,789.05/12,268.32
6. Step 6: Final answer
   x = 5,924.59