Finding the Fourth Proportional to 16,236.47, 22,405.82 and 9,162.74

Step by Step Solution

1. Step 1: Write the proportion equation
   16,236.47 : 22,405.82 = 9,162.74 : x
2. Step 2: Convert to fraction form
   16,236.47/22,405.82 = 9,162.74/x
3. Step 3: Cross multiply
   16,236.47x = 22,405.82 × 9,162.74
4. Step 4: Simplify right side
   16,236.47x = 205,298,545.30
5. Step 5: Solve for x
   x = 205,298,545.30/16,236.47
6. Step 6: Final answer
   x = 12,644.29