Finding the Fourth Proportional to 5,160.42, 7,119.11 and 3,963.29

Step by Step Solution

1. Step 1: Write the proportion equation
   5,160.42 : 7,119.11 = 3,963.29 : x
2. Step 2: Convert to fraction form
   5,160.42/7,119.11 = 3,963.29/x
3. Step 3: Cross multiply
   5,160.42x = 7,119.11 × 3,963.29
4. Step 4: Simplify right side
   5,160.42x = 28,215,071.78
5. Step 5: Solve for x
   x = 28,215,071.78/5,160.42
6. Step 6: Final answer
   x = 5,467.59