Finding the Fourth Proportional to 5,680.53, 7,838.79 and 3,162.15

Step by Step Solution

1. Step 1: Write the proportion equation
   5,680.53 : 7,838.79 = 3,162.15 : x
2. Step 2: Convert to fraction form
   5,680.53/7,838.79 = 3,162.15/x
3. Step 3: Cross multiply
   5,680.53x = 7,838.79 × 3,162.15
4. Step 4: Simplify right side
   5,680.53x = 24,787,429.80
5. Step 5: Solve for x
   x = 24,787,429.80/5,680.53
6. Step 6: Final answer
   x = 4,363.58