Finding the Fourth Proportional to 20,722.69, 31,067.25 and 6,483.82

Step by Step Solution

1. Step 1: Write the proportion equation
   20,722.69 : 31,067.25 = 6,483.82 : x
2. Step 2: Convert to fraction form
   20,722.69/31,067.25 = 6,483.82/x
3. Step 3: Cross multiply
   20,722.69x = 31,067.25 × 6,483.82
4. Step 4: Simplify right side
   20,722.69x = 201,434,500.54
5. Step 5: Solve for x
   x = 201,434,500.54/20,722.69
6. Step 6: Final answer
   x = 9,720.48