Finding the Fourth Proportional to 16,477.38, 22,740.42 and 9,404.88

Step by Step Solution

1. Step 1: Write the proportion equation
   16,477.38 : 22,740.42 = 9,404.88 : x
2. Step 2: Convert to fraction form
   16,477.38/22,740.42 = 9,404.88/x
3. Step 3: Cross multiply
   16,477.38x = 22,740.42 × 9,404.88
4. Step 4: Simplify right side
   16,477.38x = 213,870,921.25
5. Step 5: Solve for x
   x = 213,870,921.25/16,477.38
6. Step 6: Final answer
   x = 12,979.67