Finding the Fourth Proportional to 5,142.24, 7,096.40 and 2,904.12

Step by Step Solution

1. Step 1: Write the proportion equation
   5,142.24 : 7,096.40 = 2,904.12 : x
2. Step 2: Convert to fraction form
   5,142.24/7,096.40 = 2,904.12/x
3. Step 3: Cross multiply
   5,142.24x = 7,096.40 × 2,904.12
4. Step 4: Simplify right side
   5,142.24x = 20,608,797.17
5. Step 5: Solve for x
   x = 20,608,797.17/5,142.24
6. Step 6: Final answer
   x = 4,007.75