Finding the Fourth Proportional to 16,061.69, 22,166.16 and 8,988.57

Step by Step Solution

1. Step 1: Write the proportion equation
   16,061.69 : 22,166.16 = 8,988.57 : x
2. Step 2: Convert to fraction form
   16,061.69/22,166.16 = 8,988.57/x
3. Step 3: Cross multiply
   16,061.69x = 22,166.16 × 8,988.57
4. Step 4: Simplify right side
   16,061.69x = 199,242,047.08
5. Step 5: Solve for x
   x = 199,242,047.08/16,061.69
6. Step 6: Final answer
   x = 12,404.80