Finding the Fourth Proportional to 7,086.72, 10,617.24 and 3,963

Step by Step Solution

1. Step 1: Write the proportion equation
   7,086.72 : 10,617.24 = 3,963 : x
2. Step 2: Convert to fraction form
   7,086.72/10,617.24 = 3,963/x
3. Step 3: Cross multiply
   7,086.72x = 10,617.24 × 3,963
4. Step 4: Simplify right side
   7,086.72x = 42,076,122.12
5. Step 5: Solve for x
   x = 42,076,122.12/7,086.72
6. Step 6: Final answer
   x = 5,937.32