Finding the Fourth Proportional to 9,622.23, 13,227.71 and 8,272.87

Step by Step Solution

1. Step 1: Write the proportion equation
   9,622.23 : 13,227.71 = 8,272.87 : x
2. Step 2: Convert to fraction form
   9,622.23/13,227.71 = 8,272.87/x
3. Step 3: Cross multiply
   9,622.23x = 13,227.71 × 8,272.87
4. Step 4: Simplify right side
   9,622.23x = 109,431,083.86
5. Step 5: Solve for x
   x = 109,431,083.86/9,622.23
6. Step 6: Final answer
   x = 11,372.74