Finding the Fourth Proportional to 4,103.69, 5,665.81 and 3,157.81

Step by Step Solution

1. Step 1: Write the proportion equation
   4,103.69 : 5,665.81 = 3,157.81 : x
2. Step 2: Convert to fraction form
   4,103.69/5,665.81 = 3,157.81/x
3. Step 3: Cross multiply
   4,103.69x = 5,665.81 × 3,157.81
4. Step 4: Simplify right side
   4,103.69x = 17,891,551.48
5. Step 5: Solve for x
   x = 17,891,551.48/4,103.69
6. Step 6: Final answer
   x = 4,359.87