Finding the Fourth Proportional to 8,404.82, 12,612.02 and 3,143.49

Step by Step Solution

1. Step 1: Write the proportion equation
   8,404.82 : 12,612.02 = 3,143.49 : x
2. Step 2: Convert to fraction form
   8,404.82/12,612.02 = 3,143.49/x
3. Step 3: Cross multiply
   8,404.82x = 12,612.02 × 3,143.49
4. Step 4: Simplify right side
   8,404.82x = 39,645,743.03
5. Step 5: Solve for x
   x = 39,645,743.03/8,404.82
6. Step 6: Final answer
   x = 4,717.03