Finding the Fourth Proportional to 8,782.10, 12,119.61 and 5,005.83

Step by Step Solution

1. Step 1: Write the proportion equation
   8,782.10 : 12,119.61 = 5,005.83 : x
2. Step 2: Convert to fraction form
   8,782.10/12,119.61 = 5,005.83/x
3. Step 3: Cross multiply
   8,782.10x = 12,119.61 × 5,005.83
4. Step 4: Simplify right side
   8,782.10x = 60,668,707.33
5. Step 5: Solve for x
   x = 60,668,707.33/8,782.10
6. Step 6: Final answer
   x = 6,908.22