Finding the Fourth Proportional to 16,161.04, 22,302.69 and 8,991.18

Step by Step Solution

1. Step 1: Write the proportion equation
   16,161.04 : 22,302.69 = 8,991.18 : x
2. Step 2: Convert to fraction form
   16,161.04/22,302.69 = 8,991.18/x
3. Step 3: Cross multiply
   16,161.04x = 22,302.69 × 8,991.18
4. Step 4: Simplify right side
   16,161.04x = 200,527,500.27
5. Step 5: Solve for x
   x = 200,527,500.27/16,161.04
6. Step 6: Final answer
   x = 12,408.08