Finding the Fourth Proportional to 7,871.72, 10,863.84 and 4,514.72

Step by Step Solution

1. Step 1: Write the proportion equation
   7,871.72 : 10,863.84 = 4,514.72 : x
2. Step 2: Convert to fraction form
   7,871.72/10,863.84 = 4,514.72/x
3. Step 3: Cross multiply
   7,871.72x = 10,863.84 × 4,514.72
4. Step 4: Simplify right side
   7,871.72x = 49,047,195.72
5. Step 5: Solve for x
   x = 49,047,195.72/7,871.72
6. Step 6: Final answer
   x = 6,230.81