Finding the Fourth Proportional to 6,722.82, 10,084.50 and 3,213.18

Step by Step Solution

1. Step 1: Write the proportion equation
   6,722.82 : 10,084.50 = 3,213.18 : x
2. Step 2: Convert to fraction form
   6,722.82/10,084.50 = 3,213.18/x
3. Step 3: Cross multiply
   6,722.82x = 10,084.50 × 3,213.18
4. Step 4: Simplify right side
   6,722.82x = 32,403,313.71
5. Step 5: Solve for x
   x = 32,403,313.71/6,722.82
6. Step 6: Final answer
   x = 4,819.90