Finding the Fourth Proportional to 16,478, 22,740.72 and 9,026

Step by Step Solution

1. Step 1: Write the proportion equation
   16,478 : 22,740.72 = 9,026 : x
2. Step 2: Convert to fraction form
   16,478/22,740.72 = 9,026/x
3. Step 3: Cross multiply
   16,478x = 22,740.72 × 9,026
4. Step 4: Simplify right side
   16,478x = 205,257,738.72
5. Step 5: Solve for x
   x = 205,257,738.72/16,478
6. Step 6: Final answer
   x = 12,456.47