Finding the Fourth Proportional to 5,869.36, 8,105.20 and 3,777.12

Step by Step Solution

1. Step 1: Write the proportion equation
   5,869.36 : 8,105.20 = 3,777.12 : x
2. Step 2: Convert to fraction form
   5,869.36/8,105.20 = 3,777.12/x
3. Step 3: Cross multiply
   5,869.36x = 8,105.20 × 3,777.12
4. Step 4: Simplify right side
   5,869.36x = 30,614,313.02
5. Step 5: Solve for x
   x = 30,614,313.02/5,869.36
6. Step 6: Final answer
   x = 5,215.95