Finding the Fourth Proportional to 6,144.91, 8,479.56 and 3,456.54

Step by Step Solution

1. Step 1: Write the proportion equation
   6,144.91 : 8,479.56 = 3,456.54 : x
2. Step 2: Convert to fraction form
   6,144.91/8,479.56 = 3,456.54/x
3. Step 3: Cross multiply
   6,144.91x = 8,479.56 × 3,456.54
4. Step 4: Simplify right side
   6,144.91x = 29,309,938.32
5. Step 5: Solve for x
   x = 29,309,938.32/6,144.91
6. Step 6: Final answer
   x = 4,769.79