Finding the Fourth Proportional to 5,159.24, 7,119.78 and 2,801.42

Step by Step Solution

1. Step 1: Write the proportion equation
   5,159.24 : 7,119.78 = 2,801.42 : x
2. Step 2: Convert to fraction form
   5,159.24/7,119.78 = 2,801.42/x
3. Step 3: Cross multiply
   5,159.24x = 7,119.78 × 2,801.42
4. Step 4: Simplify right side
   5,159.24x = 19,945,494.09
5. Step 5: Solve for x
   x = 19,945,494.09/5,159.24
6. Step 6: Final answer
   x = 3,865.98