Finding the Fourth Proportional to 8,658.10, 12,982.52 and 4,493.91

Step by Step Solution

1. Step 1: Write the proportion equation
   8,658.10 : 12,982.52 = 4,493.91 : x
2. Step 2: Convert to fraction form
   8,658.10/12,982.52 = 4,493.91/x
3. Step 3: Cross multiply
   8,658.10x = 12,982.52 × 4,493.91
4. Step 4: Simplify right side
   8,658.10x = 58,342,287.69
5. Step 5: Solve for x
   x = 58,342,287.69/8,658.10
6. Step 6: Final answer
   x = 6,738.47