Finding the Fourth Proportional to 16,061.18, 22,161.20 and 8,986.23

Step by Step Solution

1. Step 1: Write the proportion equation
   16,061.18 : 22,161.20 = 8,986.23 : x
2. Step 2: Convert to fraction form
   16,061.18/22,161.20 = 8,986.23/x
3. Step 3: Cross multiply
   16,061.18x = 22,161.20 × 8,986.23
4. Step 4: Simplify right side
   16,061.18x = 199,145,595.34
5. Step 5: Solve for x
   x = 199,145,595.34/16,061.18
6. Step 6: Final answer
   x = 12,399.19