Finding the Fourth Proportional to 5,109.82, 7,051.56 and 2,871.70

Step by Step Solution

1. Step 1: Write the proportion equation
   5,109.82 : 7,051.56 = 2,871.70 : x
2. Step 2: Convert to fraction form
   5,109.82/7,051.56 = 2,871.70/x
3. Step 3: Cross multiply
   5,109.82x = 7,051.56 × 2,871.70
4. Step 4: Simplify right side
   5,109.82x = 20,249,964.85
5. Step 5: Solve for x
   x = 20,249,964.85/5,109.82
6. Step 6: Final answer
   x = 3,962.95