Finding the Fourth Proportional to 5,200.38, 7,176.42 and 2,842.47

Step by Step Solution

1. Step 1: Write the proportion equation
   5,200.38 : 7,176.42 = 2,842.47 : x
2. Step 2: Convert to fraction form
   5,200.38/7,176.42 = 2,842.47/x
3. Step 3: Cross multiply
   5,200.38x = 7,176.42 × 2,842.47
4. Step 4: Simplify right side
   5,200.38x = 20,398,758.56
5. Step 5: Solve for x
   x = 20,398,758.56/5,200.38
6. Step 6: Final answer
   x = 3,922.55