Finding the Fourth Proportional to 8,213.82, 12,322.67 and 2,667.16

Step by Step Solution

1. Step 1: Write the proportion equation
   8,213.82 : 12,322.67 = 2,667.16 : x
2. Step 2: Convert to fraction form
   8,213.82/12,322.67 = 2,667.16/x
3. Step 3: Cross multiply
   8,213.82x = 12,322.67 × 2,667.16
4. Step 4: Simplify right side
   8,213.82x = 32,866,532.52
5. Step 5: Solve for x
   x = 32,866,532.52/8,213.82
6. Step 6: Final answer
   x = 4,001.37