Finding the Fourth Proportional to 5,142.39, 7,096.56 and 2,873.63

Step by Step Solution

1. Step 1: Write the proportion equation
   5,142.39 : 7,096.56 = 2,873.63 : x
2. Step 2: Convert to fraction form
   5,142.39/7,096.56 = 2,873.63/x
3. Step 3: Cross multiply
   5,142.39x = 7,096.56 × 2,873.63
4. Step 4: Simplify right side
   5,142.39x = 20,392,870.92
5. Step 5: Solve for x
   x = 20,392,870.92/5,142.39
6. Step 6: Final answer
   x = 3,965.64