Finding the Fourth Proportional to 8,119.75, 12,183.89 and 5,763.05

Step by Step Solution

1. Step 1: Write the proportion equation
   8,119.75 : 12,183.89 = 5,763.05 : x
2. Step 2: Convert to fraction form
   8,119.75/12,183.89 = 5,763.05/x
3. Step 3: Cross multiply
   8,119.75x = 12,183.89 × 5,763.05
4. Step 4: Simplify right side
   8,119.75x = 70,216,367.26
5. Step 5: Solve for x
   x = 70,216,367.26/8,119.75
6. Step 6: Final answer
   x = 8,647.61