Finding the Fourth Proportional to 16,157.61, 22,297.38 and 8,987.61

Step by Step Solution

1. Step 1: Write the proportion equation
   16,157.61 : 22,297.38 = 8,987.61 : x
2. Step 2: Convert to fraction form
   16,157.61/22,297.38 = 8,987.61/x
3. Step 3: Cross multiply
   16,157.61x = 22,297.38 × 8,987.61
4. Step 4: Simplify right side
   16,157.61x = 200,400,155.46
5. Step 5: Solve for x
   x = 200,400,155.46/16,157.61
6. Step 6: Final answer
   x = 12,402.83