Finding the Fourth Proportional to 5,200.25, 7,176.51 and 2,842.55

Step by Step Solution

1. Step 1: Write the proportion equation
   5,200.25 : 7,176.51 = 2,842.55 : x
2. Step 2: Convert to fraction form
   5,200.25/7,176.51 = 2,842.55/x
3. Step 3: Cross multiply
   5,200.25x = 7,176.51 × 2,842.55
4. Step 4: Simplify right side
   5,200.25x = 20,399,588.50
5. Step 5: Solve for x
   x = 20,399,588.50/5,200.25
6. Step 6: Final answer
   x = 3,922.81