Finding the Fourth Proportional to 7,016.72, 9,686.22 and 4,628.09

Step by Step Solution

1. Step 1: Write the proportion equation
   7,016.72 : 9,686.22 = 4,628.09 : x
2. Step 2: Convert to fraction form
   7,016.72/9,686.22 = 4,628.09/x
3. Step 3: Cross multiply
   7,016.72x = 9,686.22 × 4,628.09
4. Step 4: Simplify right side
   7,016.72x = 44,828,704.78
5. Step 5: Solve for x
   x = 44,828,704.78/7,016.72
6. Step 6: Final answer
   x = 6,388.85