Finding the Fourth Proportional to 8,766.36, 13,142.39 and 5,986.04

Step by Step Solution

1. Step 1: Write the proportion equation
   8,766.36 : 13,142.39 = 5,986.04 : x
2. Step 2: Convert to fraction form
   8,766.36/13,142.39 = 5,986.04/x
3. Step 3: Cross multiply
   8,766.36x = 13,142.39 × 5,986.04
4. Step 4: Simplify right side
   8,766.36x = 78,670,776.59
5. Step 5: Solve for x
   x = 78,670,776.59/8,766.36
6. Step 6: Final answer
   x = 8,974.17