Finding the Fourth Proportional to 10,963.28, 16,447.37 and 5,116.70

Step by Step Solution

1. Step 1: Write the proportion equation
   10,963.28 : 16,447.37 = 5,116.70 : x
2. Step 2: Convert to fraction form
   10,963.28/16,447.37 = 5,116.70/x
3. Step 3: Cross multiply
   10,963.28x = 16,447.37 × 5,116.70
4. Step 4: Simplify right side
   10,963.28x = 84,156,150.26
5. Step 5: Solve for x
   x = 84,156,150.26/10,963.28
6. Step 6: Final answer
   x = 7,676.19