Finding the Fourth Proportional to 10,616.28, 15,920.72 and 5,349.25

Step by Step Solution

1. Step 1: Write the proportion equation
   10,616.28 : 15,920.72 = 5,349.25 : x
2. Step 2: Convert to fraction form
   10,616.28/15,920.72 = 5,349.25/x
3. Step 3: Cross multiply
   10,616.28x = 15,920.72 × 5,349.25
4. Step 4: Simplify right side
   10,616.28x = 85,163,911.46
5. Step 5: Solve for x
   x = 85,163,911.46/10,616.28
6. Step 6: Final answer
   x = 8,022.01