Finding the Fourth Proportional to 16,061.22, 22,164.48 and 8,987.64

Step by Step Solution

1. Step 1: Write the proportion equation
   16,061.22 : 22,164.48 = 8,987.64 : x
2. Step 2: Convert to fraction form
   16,061.22/22,164.48 = 8,987.64/x
3. Step 3: Cross multiply
   16,061.22x = 22,164.48 × 8,987.64
4. Step 4: Simplify right side
   16,061.22x = 199,206,367.03
5. Step 5: Solve for x
   x = 199,206,367.03/16,061.22
6. Step 6: Final answer
   x = 12,402.94