Finding the Fourth Proportional to 8,658.72, 12,983.46 and 4,494.54

Step by Step Solution

1. Step 1: Write the proportion equation
   8,658.72 : 12,983.46 = 4,494.54 : x
2. Step 2: Convert to fraction form
   8,658.72/12,983.46 = 4,494.54/x
3. Step 3: Cross multiply
   8,658.72x = 12,983.46 × 4,494.54
4. Step 4: Simplify right side
   8,658.72x = 58,354,680.31
5. Step 5: Solve for x
   x = 58,354,680.31/8,658.72
6. Step 6: Final answer
   x = 6,739.41