Finding the Fourth Proportional to 3,893.33, 5,868.72 and 3,667.55

Step by Step Solution

1. Step 1: Write the proportion equation
   3,893.33 : 5,868.72 = 3,667.55 : x
2. Step 2: Convert to fraction form
   3,893.33/5,868.72 = 3,667.55/x
3. Step 3: Cross multiply
   3,893.33x = 5,868.72 × 3,667.55
4. Step 4: Simplify right side
   3,893.33x = 21,523,794.69
5. Step 5: Solve for x
   x = 21,523,794.69/3,893.33
6. Step 6: Final answer
   x = 5,528.37