Finding the Fourth Proportional to 3,919.18, 5,869.50 and 3,403.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,919.18 : 5,869.50 = 3,403.42 : x
2. Step 2: Convert to fraction form
   3,919.18/5,869.50 = 3,403.42/x
3. Step 3: Cross multiply
   3,919.18x = 5,869.50 × 3,403.42
4. Step 4: Simplify right side
   3,919.18x = 19,976,373.69
5. Step 5: Solve for x
   x = 19,976,373.69/3,919.18
6. Step 6: Final answer
   x = 5,097.08