Finding the Fourth Proportional to 5,388.16, 8,066.82 and 3,908.68

Step by Step Solution

1. Step 1: Write the proportion equation
   5,388.16 : 8,066.82 = 3,908.68 : x
2. Step 2: Convert to fraction form
   5,388.16/8,066.82 = 3,908.68/x
3. Step 3: Cross multiply
   5,388.16x = 8,066.82 × 3,908.68
4. Step 4: Simplify right side
   5,388.16x = 31,530,618.00
5. Step 5: Solve for x
   x = 31,530,618.00/5,388.16
6. Step 6: Final answer
   x = 5,851.83