Finding the Fourth Proportional to 16,405.69, 22,637.82 and 9,234.73

Step by Step Solution

1. Step 1: Write the proportion equation
   16,405.69 : 22,637.82 = 9,234.73 : x
2. Step 2: Convert to fraction form
   16,405.69/22,637.82 = 9,234.73/x
3. Step 3: Cross multiply
   16,405.69x = 22,637.82 × 9,234.73
4. Step 4: Simplify right side
   16,405.69x = 209,054,155.49
5. Step 5: Solve for x
   x = 209,054,155.49/16,405.69
6. Step 6: Final answer
   x = 12,742.78