Finding the Fourth Proportional to 8,626.61, 12,876.95 and 7,401.89

Step by Step Solution

1. Step 1: Write the proportion equation
   8,626.61 : 12,876.95 = 7,401.89 : x
2. Step 2: Convert to fraction form
   8,626.61/12,876.95 = 7,401.89/x
3. Step 3: Cross multiply
   8,626.61x = 12,876.95 × 7,401.89
4. Step 4: Simplify right side
   8,626.61x = 95,313,693.80
5. Step 5: Solve for x
   x = 95,313,693.80/8,626.61
6. Step 6: Final answer
   x = 11,048.81