Finding the Fourth Proportional to 3,924.60, 5,915.12 and 3,383.32

Step by Step Solution

1. Step 1: Write the proportion equation
   3,924.60 : 5,915.12 = 3,383.32 : x
2. Step 2: Convert to fraction form
   3,924.60/5,915.12 = 3,383.32/x
3. Step 3: Cross multiply
   3,924.60x = 5,915.12 × 3,383.32
4. Step 4: Simplify right side
   3,924.60x = 20,012,743.80
5. Step 5: Solve for x
   x = 20,012,743.80/3,924.60
6. Step 6: Final answer
   x = 5,099.31