Finding the Fourth Proportional to 16,236.45, 22,403.52 and 9,162.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,236.45 : 22,403.52 = 9,162.72 : x
2. Step 2: Convert to fraction form
   16,236.45/22,403.52 = 9,162.72/x
3. Step 3: Cross multiply
   16,236.45x = 22,403.52 × 9,162.72
4. Step 4: Simplify right side
   16,236.45x = 205,277,180.77
5. Step 5: Solve for x
   x = 205,277,180.77/16,236.45
6. Step 6: Final answer
   x = 12,642.98