Finding the Fourth Proportional to 5,629.68, 8,439.12 and 3,683.52

Step by Step Solution

1. Step 1: Write the proportion equation
   5,629.68 : 8,439.12 = 3,683.52 : x
2. Step 2: Convert to fraction form
   5,629.68/8,439.12 = 3,683.52/x
3. Step 3: Cross multiply
   5,629.68x = 8,439.12 × 3,683.52
4. Step 4: Simplify right side
   5,629.68x = 31,085,667.30
5. Step 5: Solve for x
   x = 31,085,667.30/5,629.68
6. Step 6: Final answer
   x = 5,521.75