Finding the Fourth Proportional to 16,262.72, 22,443.48 and 9,189.76

Step by Step Solution

1. Step 1: Write the proportion equation
   16,262.72 : 22,443.48 = 9,189.76 : x
2. Step 2: Convert to fraction form
   16,262.72/22,443.48 = 9,189.76/x
3. Step 3: Cross multiply
   16,262.72x = 22,443.48 × 9,189.76
4. Step 4: Simplify right side
   16,262.72x = 206,250,194.76
5. Step 5: Solve for x
   x = 206,250,194.76/16,262.72
6. Step 6: Final answer
   x = 12,682.39