Finding the Fourth Proportional to 7,022.78, 9,682.98 and 5,679.82

Step by Step Solution

1. Step 1: Write the proportion equation
   7,022.78 : 9,682.98 = 5,679.82 : x
2. Step 2: Convert to fraction form
   7,022.78/9,682.98 = 5,679.82/x
3. Step 3: Cross multiply
   7,022.78x = 9,682.98 × 5,679.82
4. Step 4: Simplify right side
   7,022.78x = 54,997,583.46
5. Step 5: Solve for x
   x = 54,997,583.46/7,022.78
6. Step 6: Final answer
   x = 7,831.31