Finding the Fourth Proportional to 10,962.76, 16,433.86 and 5,339.20

Step by Step Solution

1. Step 1: Write the proportion equation
   10,962.76 : 16,433.86 = 5,339.20 : x
2. Step 2: Convert to fraction form
   10,962.76/16,433.86 = 5,339.20/x
3. Step 3: Cross multiply
   10,962.76x = 16,433.86 × 5,339.20
4. Step 4: Simplify right side
   10,962.76x = 87,743,665.31
5. Step 5: Solve for x
   x = 87,743,665.31/10,962.76
6. Step 6: Final answer
   x = 8,003.79