Finding the Fourth Proportional to 16,150.20, 22,287.80 and 9,777.96

Step by Step Solution

1. Step 1: Write the proportion equation
   16,150.20 : 22,287.80 = 9,777.96 : x
2. Step 2: Convert to fraction form
   16,150.20/22,287.80 = 9,777.96/x
3. Step 3: Cross multiply
   16,150.20x = 22,287.80 × 9,777.96
4. Step 4: Simplify right side
   16,150.20x = 217,929,216.89
5. Step 5: Solve for x
   x = 217,929,216.89/16,150.20
6. Step 6: Final answer
   x = 13,493.90