Finding the Fourth Proportional to 5,109.67, 7,051.41 and 2,871.42

Step by Step Solution

1. Step 1: Write the proportion equation
   5,109.67 : 7,051.41 = 2,871.42 : x
2. Step 2: Convert to fraction form
   5,109.67/7,051.41 = 2,871.42/x
3. Step 3: Cross multiply
   5,109.67x = 7,051.41 × 2,871.42
4. Step 4: Simplify right side
   5,109.67x = 20,247,559.70
5. Step 5: Solve for x
   x = 20,247,559.70/5,109.67
6. Step 6: Final answer
   x = 3,962.60