Finding the Fourth Proportional to 16,061.24, 22,165.44 and 8,987.60

Step by Step Solution

1. Step 1: Write the proportion equation
   16,061.24 : 22,165.44 = 8,987.60 : x
2. Step 2: Convert to fraction form
   16,061.24/22,165.44 = 8,987.60/x
3. Step 3: Cross multiply
   16,061.24x = 22,165.44 × 8,987.60
4. Step 4: Simplify right side
   16,061.24x = 199,214,108.54
5. Step 5: Solve for x
   x = 199,214,108.54/16,061.24
6. Step 6: Final answer
   x = 12,403.41