Finding the Fourth Proportional to 3,144.35, 4,686.17 and 3,118.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,144.35 : 4,686.17 = 3,118.52 : x
2. Step 2: Convert to fraction form
   3,144.35/4,686.17 = 3,118.52/x
3. Step 3: Cross multiply
   3,144.35x = 4,686.17 × 3,118.52
4. Step 4: Simplify right side
   3,144.35x = 14,613,910.99
5. Step 5: Solve for x
   x = 14,613,910.99/3,144.35
6. Step 6: Final answer
   x = 4,647.67