Finding the Fourth Proportional to 6,667.55, 9,201.99 and 3,979.43

Step by Step Solution

1. Step 1: Write the proportion equation
   6,667.55 : 9,201.99 = 3,979.43 : x
2. Step 2: Convert to fraction form
   6,667.55/9,201.99 = 3,979.43/x
3. Step 3: Cross multiply
   6,667.55x = 9,201.99 × 3,979.43
4. Step 4: Simplify right side
   6,667.55x = 36,618,609.16
5. Step 5: Solve for x
   x = 36,618,609.16/6,667.55
6. Step 6: Final answer
   x = 5,492.07