Finding the Fourth Proportional to 9,142.06, 13,713.17 and 2,216.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,142.06 : 13,713.17 = 2,216.56 : x
2. Step 2: Convert to fraction form
   9,142.06/13,713.17 = 2,216.56/x
3. Step 3: Cross multiply
   9,142.06x = 13,713.17 × 2,216.56
4. Step 4: Simplify right side
   9,142.06x = 30,396,064.10
5. Step 5: Solve for x
   x = 30,396,064.10/9,142.06
6. Step 6: Final answer
   x = 3,324.86