Finding the Fourth Proportional to 5,016.36, 7,520.22 and 2,828.28

Step by Step Solution

1. Step 1: Write the proportion equation
   5,016.36 : 7,520.22 = 2,828.28 : x
2. Step 2: Convert to fraction form
   5,016.36/7,520.22 = 2,828.28/x
3. Step 3: Cross multiply
   5,016.36x = 7,520.22 × 2,828.28
4. Step 4: Simplify right side
   5,016.36x = 21,269,287.82
5. Step 5: Solve for x
   x = 21,269,287.82/5,016.36
6. Step 6: Final answer
   x = 4,239.98