Finding the Fourth Proportional to 6,978.96, 10,474.92 and 5,339.52

Step by Step Solution

1. Step 1: Write the proportion equation
   6,978.96 : 10,474.92 = 5,339.52 : x
2. Step 2: Convert to fraction form
   6,978.96/10,474.92 = 5,339.52/x
3. Step 3: Cross multiply
   6,978.96x = 10,474.92 × 5,339.52
4. Step 4: Simplify right side
   6,978.96x = 55,931,044.84
5. Step 5: Solve for x
   x = 55,931,044.84/6,978.96
6. Step 6: Final answer
   x = 8,014.24