Finding the Fourth Proportional to 8,270.31, 12,402.83 and 2,722.42

Step by Step Solution

1. Step 1: Write the proportion equation
   8,270.31 : 12,402.83 = 2,722.42 : x
2. Step 2: Convert to fraction form
   8,270.31/12,402.83 = 2,722.42/x
3. Step 3: Cross multiply
   8,270.31x = 12,402.83 × 2,722.42
4. Step 4: Simplify right side
   8,270.31x = 33,765,688.25
5. Step 5: Solve for x
   x = 33,765,688.25/8,270.31
6. Step 6: Final answer
   x = 4,082.76