Finding the Fourth Proportional to 16,147.67, 22,281.26 and 9,072.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,147.67 : 22,281.26 = 9,072.72 : x
2. Step 2: Convert to fraction form
   16,147.67/22,281.26 = 9,072.72/x
3. Step 3: Cross multiply
   16,147.67x = 22,281.26 × 9,072.72
4. Step 4: Simplify right side
   16,147.67x = 202,151,587.86
5. Step 5: Solve for x
   x = 202,151,587.86/16,147.67
6. Step 6: Final answer
   x = 12,518.94