Finding the Fourth Proportional to 3,924.17, 5,408.85 and 3,820.29

Step by Step Solution

1. Step 1: Write the proportion equation
   3,924.17 : 5,408.85 = 3,820.29 : x
2. Step 2: Convert to fraction form
   3,924.17/5,408.85 = 3,820.29/x
3. Step 3: Cross multiply
   3,924.17x = 5,408.85 × 3,820.29
4. Step 4: Simplify right side
   3,924.17x = 20,663,375.57
5. Step 5: Solve for x
   x = 20,663,375.57/3,924.17
6. Step 6: Final answer
   x = 5,265.67