Finding the Fourth Proportional to 5,103.84, 7,042.81 and 2,865.27

Step by Step Solution

1. Step 1: Write the proportion equation
   5,103.84 : 7,042.81 = 2,865.27 : x
2. Step 2: Convert to fraction form
   5,103.84/7,042.81 = 2,865.27/x
3. Step 3: Cross multiply
   5,103.84x = 7,042.81 × 2,865.27
4. Step 4: Simplify right side
   5,103.84x = 20,179,552.21
5. Step 5: Solve for x
   x = 20,179,552.21/5,103.84
6. Step 6: Final answer
   x = 3,953.80