Finding the Fourth Proportional to 16,778.37, 23,154.80 and 9,609.42

Step by Step Solution

1. Step 1: Write the proportion equation
   16,778.37 : 23,154.80 = 9,609.42 : x
2. Step 2: Convert to fraction form
   16,778.37/23,154.80 = 9,609.42/x
3. Step 3: Cross multiply
   16,778.37x = 23,154.80 × 9,609.42
4. Step 4: Simplify right side
   16,778.37x = 222,504,150.17
5. Step 5: Solve for x
   x = 222,504,150.17/16,778.37
6. Step 6: Final answer
   x = 13,261.37