Finding the Fourth Proportional to 6,871.98, 10,307.98 and 3,948.42

Step by Step Solution

1. Step 1: Write the proportion equation
   6,871.98 : 10,307.98 = 3,948.42 : x
2. Step 2: Convert to fraction form
   6,871.98/10,307.98 = 3,948.42/x
3. Step 3: Cross multiply
   6,871.98x = 10,307.98 × 3,948.42
4. Step 4: Simplify right side
   6,871.98x = 40,700,234.39
5. Step 5: Solve for x
   x = 40,700,234.39/6,871.98
6. Step 6: Final answer
   x = 5,922.64