Finding the Fourth Proportional to 8,782.09, 12,119.59 and 5,005.83

Step by Step Solution

1. Step 1: Write the proportion equation
   8,782.09 : 12,119.59 = 5,005.83 : x
2. Step 2: Convert to fraction form
   8,782.09/12,119.59 = 5,005.83/x
3. Step 3: Cross multiply
   8,782.09x = 12,119.59 × 5,005.83
4. Step 4: Simplify right side
   8,782.09x = 60,668,658.92
5. Step 5: Solve for x
   x = 60,668,658.92/8,782.09
6. Step 6: Final answer
   x = 6,908.23