Finding the Fourth Proportional to 5,103.24, 7,042.56 and 3,113.46

Step by Step Solution

1. Step 1: Write the proportion equation
   5,103.24 : 7,042.56 = 3,113.46 : x
2. Step 2: Convert to fraction form
   5,103.24/7,042.56 = 3,113.46/x
3. Step 3: Cross multiply
   5,103.24x = 7,042.56 × 3,113.46
4. Step 4: Simplify right side
   5,103.24x = 21,926,728.86
5. Step 5: Solve for x
   x = 21,926,728.86/5,103.24
6. Step 6: Final answer
   x = 4,296.63