Finding the Fourth Proportional to 6,144.72, 8,479.09 and 3,491.61

Step by Step Solution

1. Step 1: Write the proportion equation
   6,144.72 : 8,479.09 = 3,491.61 : x
2. Step 2: Convert to fraction form
   6,144.72/8,479.09 = 3,491.61/x
3. Step 3: Cross multiply
   6,144.72x = 8,479.09 × 3,491.61
4. Step 4: Simplify right side
   6,144.72x = 29,605,675.43
5. Step 5: Solve for x
   x = 29,605,675.43/6,144.72
6. Step 6: Final answer
   x = 4,818.07