Finding the Fourth Proportional to 16,601, 22,910.82 and 9,150.44

Step by Step Solution

1. Step 1: Write the proportion equation
   16,601 : 22,910.82 = 9,150.44 : x
2. Step 2: Convert to fraction form
   16,601/22,910.82 = 9,150.44/x
3. Step 3: Cross multiply
   16,601x = 22,910.82 × 9,150.44
4. Step 4: Simplify right side
   16,601x = 209,644,083.76
5. Step 5: Solve for x
   x = 209,644,083.76/16,601
6. Step 6: Final answer
   x = 12,628.40