Finding the Fourth Proportional to 3,885.16, 5,814.81 and 3,539.29

Step by Step Solution

1. Step 1: Write the proportion equation
   3,885.16 : 5,814.81 = 3,539.29 : x
2. Step 2: Convert to fraction form
   3,885.16/5,814.81 = 3,539.29/x
3. Step 3: Cross multiply
   3,885.16x = 5,814.81 × 3,539.29
4. Step 4: Simplify right side
   3,885.16x = 20,580,298.88
5. Step 5: Solve for x
   x = 20,580,298.88/3,885.16
6. Step 6: Final answer
   x = 5,297.16