Finding the Fourth Proportional to 10,871.57, 16,306.25 and 2,974.79

Step by Step Solution

1. Step 1: Write the proportion equation
   10,871.57 : 16,306.25 = 2,974.79 : x
2. Step 2: Convert to fraction form
   10,871.57/16,306.25 = 2,974.79/x
3. Step 3: Cross multiply
   10,871.57x = 16,306.25 × 2,974.79
4. Step 4: Simplify right side
   10,871.57x = 48,507,573.03
5. Step 5: Solve for x
   x = 48,507,573.03/10,871.57
6. Step 6: Final answer
   x = 4,461.88