Finding the Fourth Proportional to 5,087.72, 7,013.69 and 3,408.51

Step by Step Solution

1. Step 1: Write the proportion equation
   5,087.72 : 7,013.69 = 3,408.51 : x
2. Step 2: Convert to fraction form
   5,087.72/7,013.69 = 3,408.51/x
3. Step 3: Cross multiply
   5,087.72x = 7,013.69 × 3,408.51
4. Step 4: Simplify right side
   5,087.72x = 23,906,215.46
5. Step 5: Solve for x
   x = 23,906,215.46/5,087.72
6. Step 6: Final answer
   x = 4,698.81