Finding the Fourth Proportional to 9,216.86, 12,720.17 and 5,441.27

Step by Step Solution

1. Step 1: Write the proportion equation
   9,216.86 : 12,720.17 = 5,441.27 : x
2. Step 2: Convert to fraction form
   9,216.86/12,720.17 = 5,441.27/x
3. Step 3: Cross multiply
   9,216.86x = 12,720.17 × 5,441.27
4. Step 4: Simplify right side
   9,216.86x = 69,213,829.42
5. Step 5: Solve for x
   x = 69,213,829.42/9,216.86
6. Step 6: Final answer
   x = 7,509.48