Finding the Fourth Proportional to 5,871.78, 8,103.31 and 3,513.47

Step by Step Solution

1. Step 1: Write the proportion equation
   5,871.78 : 8,103.31 = 3,513.47 : x
2. Step 2: Convert to fraction form
   5,871.78/8,103.31 = 3,513.47/x
3. Step 3: Cross multiply
   5,871.78x = 8,103.31 × 3,513.47
4. Step 4: Simplify right side
   5,871.78x = 28,470,687.29
5. Step 5: Solve for x
   x = 28,470,687.29/5,871.78
6. Step 6: Final answer
   x = 4,848.73