Finding the Fourth Proportional to 5,142.46, 7,096.56 and 2,904.78

Step by Step Solution

1. Step 1: Write the proportion equation
   5,142.46 : 7,096.56 = 2,904.78 : x
2. Step 2: Convert to fraction form
   5,142.46/7,096.56 = 2,904.78/x
3. Step 3: Cross multiply
   5,142.46x = 7,096.56 × 2,904.78
4. Step 4: Simplify right side
   5,142.46x = 20,613,945.56
5. Step 5: Solve for x
   x = 20,613,945.56/5,142.46
6. Step 6: Final answer
   x = 4,008.58