Finding the Fourth Proportional to 3,785.92, 5,227.81 and 3,616.81

Step by Step Solution

1. Step 1: Write the proportion equation
   3,785.92 : 5,227.81 = 3,616.81 : x
2. Step 2: Convert to fraction form
   3,785.92/5,227.81 = 3,616.81/x
3. Step 3: Cross multiply
   3,785.92x = 5,227.81 × 3,616.81
4. Step 4: Simplify right side
   3,785.92x = 18,907,973.37
5. Step 5: Solve for x
   x = 18,907,973.37/3,785.92
6. Step 6: Final answer
   x = 4,994.29