Finding the Fourth Proportional to 16,234.95, 22,404.90 and 9,161.34

Step by Step Solution

1. Step 1: Write the proportion equation
   16,234.95 : 22,404.90 = 9,161.34 : x
2. Step 2: Convert to fraction form
   16,234.95/22,404.90 = 9,161.34/x
3. Step 3: Cross multiply
   16,234.95x = 22,404.90 × 9,161.34
4. Step 4: Simplify right side
   16,234.95x = 205,258,906.57
5. Step 5: Solve for x
   x = 205,258,906.57/16,234.95
6. Step 6: Final answer
   x = 12,643.03