Finding the Fourth Proportional to 5,978.06, 8,968.68 and 5,324.42

Step by Step Solution

1. Step 1: Write the proportion equation
   5,978.06 : 8,968.68 = 5,324.42 : x
2. Step 2: Convert to fraction form
   5,978.06/8,968.68 = 5,324.42/x
3. Step 3: Cross multiply
   5,978.06x = 8,968.68 × 5,324.42
4. Step 4: Simplify right side
   5,978.06x = 47,752,974.32
5. Step 5: Solve for x
   x = 47,752,974.32/5,978.06
6. Step 6: Final answer
   x = 7,988.05