Finding the Fourth Proportional to 5,667.40, 7,806.33 and 3,962.89

Step by Step Solution

1. Step 1: Write the proportion equation
   5,667.40 : 7,806.33 = 3,962.89 : x
2. Step 2: Convert to fraction form
   5,667.40/7,806.33 = 3,962.89/x
3. Step 3: Cross multiply
   5,667.40x = 7,806.33 × 3,962.89
4. Step 4: Simplify right side
   5,667.40x = 30,935,627.09
5. Step 5: Solve for x
   x = 30,935,627.09/5,667.40
6. Step 6: Final answer
   x = 5,458.52