Finding the Fourth Proportional to 16,061.88, 22,166.28 and 8,988.96

Step by Step Solution

1. Step 1: Write the proportion equation
   16,061.88 : 22,166.28 = 8,988.96 : x
2. Step 2: Convert to fraction form
   16,061.88/22,166.28 = 8,988.96/x
3. Step 3: Cross multiply
   16,061.88x = 22,166.28 × 8,988.96
4. Step 4: Simplify right side
   16,061.88x = 199,251,804.27
5. Step 5: Solve for x
   x = 199,251,804.27/16,061.88
6. Step 6: Final answer
   x = 12,405.26