Finding the Fourth Proportional to 16,478.25, 22,739.99 and 9,404.52

Step by Step Solution

1. Step 1: Write the proportion equation
   16,478.25 : 22,739.99 = 9,404.52 : x
2. Step 2: Convert to fraction form
   16,478.25/22,739.99 = 9,404.52/x
3. Step 3: Cross multiply
   16,478.25x = 22,739.99 × 9,404.52
4. Step 4: Simplify right side
   16,478.25x = 213,858,643.73
5. Step 5: Solve for x
   x = 213,858,643.73/16,478.25
6. Step 6: Final answer
   x = 12,978.24