Finding the Fourth Proportional to 6,863.50, 9,471.63 and 3,719.71

Step by Step Solution

1. Step 1: Write the proportion equation
   6,863.50 : 9,471.63 = 3,719.71 : x
2. Step 2: Convert to fraction form
   6,863.50/9,471.63 = 3,719.71/x
3. Step 3: Cross multiply
   6,863.50x = 9,471.63 × 3,719.71
4. Step 4: Simplify right side
   6,863.50x = 35,231,716.83
5. Step 5: Solve for x
   x = 35,231,716.83/6,863.50
6. Step 6: Final answer
   x = 5,133.20