Finding the Fourth Proportional to 5,552.62, 7,667.67 and 5,218.90

Step by Step Solution

1. Step 1: Write the proportion equation
   5,552.62 : 7,667.67 = 5,218.90 : x
2. Step 2: Convert to fraction form
   5,552.62/7,667.67 = 5,218.90/x
3. Step 3: Cross multiply
   5,552.62x = 7,667.67 × 5,218.90
4. Step 4: Simplify right side
   5,552.62x = 40,016,802.96
5. Step 5: Solve for x
   x = 40,016,802.96/5,552.62
6. Step 6: Final answer
   x = 7,206.83