Finding the Fourth Proportional to 7,146.72, 10,719.54 and 2,216.43

Step by Step Solution

1. Step 1: Write the proportion equation
   7,146.72 : 10,719.54 = 2,216.43 : x
2. Step 2: Convert to fraction form
   7,146.72/10,719.54 = 2,216.43/x
3. Step 3: Cross multiply
   7,146.72x = 10,719.54 × 2,216.43
4. Step 4: Simplify right side
   7,146.72x = 23,759,110.04
5. Step 5: Solve for x
   x = 23,759,110.04/7,146.72
6. Step 6: Final answer
   x = 3,324.48