Finding the Fourth Proportional to 8,309, 12,464.34 and 3,377.88

Step by Step Solution

1. Step 1: Write the proportion equation
   8,309 : 12,464.34 = 3,377.88 : x
2. Step 2: Convert to fraction form
   8,309/12,464.34 = 3,377.88/x
3. Step 3: Cross multiply
   8,309x = 12,464.34 × 3,377.88
4. Step 4: Simplify right side
   8,309x = 42,103,044.80
5. Step 5: Solve for x
   x = 42,103,044.80/8,309
6. Step 6: Final answer
   x = 5,067.16