Finding the Fourth Proportional to 5,087.34, 7,016.58 and 3,408.21

Step by Step Solution

1. Step 1: Write the proportion equation
   5,087.34 : 7,016.58 = 3,408.21 : x
2. Step 2: Convert to fraction form
   5,087.34/7,016.58 = 3,408.21/x
3. Step 3: Cross multiply
   5,087.34x = 7,016.58 × 3,408.21
4. Step 4: Simplify right side
   5,087.34x = 23,913,978.12
5. Step 5: Solve for x
   x = 23,913,978.12/5,087.34
6. Step 6: Final answer
   x = 4,700.68