Finding the Fourth Proportional to 5,665.48, 7,814.83 and 3,894.01

Step by Step Solution

1. Step 1: Write the proportion equation
   5,665.48 : 7,814.83 = 3,894.01 : x
2. Step 2: Convert to fraction form
   5,665.48/7,814.83 = 3,894.01/x
3. Step 3: Cross multiply
   5,665.48x = 7,814.83 × 3,894.01
4. Step 4: Simplify right side
   5,665.48x = 30,431,004.20
5. Step 5: Solve for x
   x = 30,431,004.20/5,665.48
6. Step 6: Final answer
   x = 5,371.30