Finding the Fourth Proportional to 5,109.14, 7,051.02 and 2,871.50

Step by Step Solution

1. Step 1: Write the proportion equation
   5,109.14 : 7,051.02 = 2,871.50 : x
2. Step 2: Convert to fraction form
   5,109.14/7,051.02 = 2,871.50/x
3. Step 3: Cross multiply
   5,109.14x = 7,051.02 × 2,871.50
4. Step 4: Simplify right side
   5,109.14x = 20,247,003.93
5. Step 5: Solve for x
   x = 20,247,003.93/5,109.14
6. Step 6: Final answer
   x = 3,962.90