Finding the Fourth Proportional to 7,147.52, 10,722.72 and 2,216.96

Step by Step Solution

1. Step 1: Write the proportion equation
   7,147.52 : 10,722.72 = 2,216.96 : x
2. Step 2: Convert to fraction form
   7,147.52/10,722.72 = 2,216.96/x
3. Step 3: Cross multiply
   7,147.52x = 10,722.72 × 2,216.96
4. Step 4: Simplify right side
   7,147.52x = 23,771,841.33
5. Step 5: Solve for x
   x = 23,771,841.33/7,147.52
6. Step 6: Final answer
   x = 3,325.89