Finding the Fourth Proportional to 12,165.04, 16,786.50 and 8,980.02

Step by Step Solution

1. Step 1: Write the proportion equation
   12,165.04 : 16,786.50 = 8,980.02 : x
2. Step 2: Convert to fraction form
   12,165.04/16,786.50 = 8,980.02/x
3. Step 3: Cross multiply
   12,165.04x = 16,786.50 × 8,980.02
4. Step 4: Simplify right side
   12,165.04x = 150,743,105.73
5. Step 5: Solve for x
   x = 150,743,105.73/12,165.04
6. Step 6: Final answer
   x = 12,391.50