Finding the Fourth Proportional to 16,076.72, 22,179.24 and 9,786.80

Step by Step Solution

1. Step 1: Write the proportion equation
   16,076.72 : 22,179.24 = 9,786.80 : x
2. Step 2: Convert to fraction form
   16,076.72/22,179.24 = 9,786.80/x
3. Step 3: Cross multiply
   16,076.72x = 22,179.24 × 9,786.80
4. Step 4: Simplify right side
   16,076.72x = 217,063,786.03
5. Step 5: Solve for x
   x = 217,063,786.03/16,076.72
6. Step 6: Final answer
   x = 13,501.75