Finding the Fourth Proportional to 16,076.80, 22,185.47 and 8,906.42

Step by Step Solution

1. Step 1: Write the proportion equation
   16,076.80 : 22,185.47 = 8,906.42 : x
2. Step 2: Convert to fraction form
   16,076.80/22,185.47 = 8,906.42/x
3. Step 3: Cross multiply
   16,076.80x = 22,185.47 × 8,906.42
4. Step 4: Simplify right side
   16,076.80x = 197,593,113.72
5. Step 5: Solve for x
   x = 197,593,113.72/16,076.80
6. Step 6: Final answer
   x = 12,290.57