Finding the Fourth Proportional to 5,111.71, 7,053.28 and 2,873.27

Step by Step Solution

1. Step 1: Write the proportion equation
   5,111.71 : 7,053.28 = 2,873.27 : x
2. Step 2: Convert to fraction form
   5,111.71/7,053.28 = 2,873.27/x
3. Step 3: Cross multiply
   5,111.71x = 7,053.28 × 2,873.27
4. Step 4: Simplify right side
   5,111.71x = 20,265,988.28
5. Step 5: Solve for x
   x = 20,265,988.28/5,111.71
6. Step 6: Final answer
   x = 3,964.62