Finding the Fourth Proportional to 8,581.68, 12,870.21 and 3,034.29

Step by Step Solution

1. Step 1: Write the proportion equation
   8,581.68 : 12,870.21 = 3,034.29 : x
2. Step 2: Convert to fraction form
   8,581.68/12,870.21 = 3,034.29/x
3. Step 3: Cross multiply
   8,581.68x = 12,870.21 × 3,034.29
4. Step 4: Simplify right side
   8,581.68x = 39,051,949.50
5. Step 5: Solve for x
   x = 39,051,949.50/8,581.68
6. Step 6: Final answer
   x = 4,550.62