Finding the Fourth Proportional to 16,478.73, 22,738.46 and 9,308.61

Step by Step Solution

1. Step 1: Write the proportion equation
   16,478.73 : 22,738.46 = 9,308.61 : x
2. Step 2: Convert to fraction form
   16,478.73/22,738.46 = 9,308.61/x
3. Step 3: Cross multiply
   16,478.73x = 22,738.46 × 9,308.61
4. Step 4: Simplify right side
   16,478.73x = 211,663,409.60
5. Step 5: Solve for x
   x = 211,663,409.60/16,478.73
6. Step 6: Final answer
   x = 12,844.64