Finding the Fourth Proportional to 8,651.85, 12,969.98 and 3,103.89

Step by Step Solution

1. Step 1: Write the proportion equation
   8,651.85 : 12,969.98 = 3,103.89 : x
2. Step 2: Convert to fraction form
   8,651.85/12,969.98 = 3,103.89/x
3. Step 3: Cross multiply
   8,651.85x = 12,969.98 × 3,103.89
4. Step 4: Simplify right side
   8,651.85x = 40,257,391.22
5. Step 5: Solve for x
   x = 40,257,391.22/8,651.85
6. Step 6: Final answer
   x = 4,653.04