Finding the Fourth Proportional to 6,144.72, 8,479.56 and 3,350.20

Step by Step Solution

1. Step 1: Write the proportion equation
   6,144.72 : 8,479.56 = 3,350.20 : x
2. Step 2: Convert to fraction form
   6,144.72/8,479.56 = 3,350.20/x
3. Step 3: Cross multiply
   6,144.72x = 8,479.56 × 3,350.20
4. Step 4: Simplify right side
   6,144.72x = 28,408,221.91
5. Step 5: Solve for x
   x = 28,408,221.91/6,144.72
6. Step 6: Final answer
   x = 4,623.19