Finding the Fourth Proportional to 7,144.76, 10,716.72 and 2,214.24

Step by Step Solution

1. Step 1: Write the proportion equation
   7,144.76 : 10,716.72 = 2,214.24 : x
2. Step 2: Convert to fraction form
   7,144.76/10,716.72 = 2,214.24/x
3. Step 3: Cross multiply
   7,144.76x = 10,716.72 × 2,214.24
4. Step 4: Simplify right side
   7,144.76x = 23,729,390.09
5. Step 5: Solve for x
   x = 23,729,390.09/7,144.76
6. Step 6: Final answer
   x = 3,321.23