Finding the Fourth Proportional to 8,270.74, 12,406.89 and 2,721.82

Step by Step Solution

1. Step 1: Write the proportion equation
   8,270.74 : 12,406.89 = 2,721.82 : x
2. Step 2: Convert to fraction form
   8,270.74/12,406.89 = 2,721.82/x
3. Step 3: Cross multiply
   8,270.74x = 12,406.89 × 2,721.82
4. Step 4: Simplify right side
   8,270.74x = 33,769,321.34
5. Step 5: Solve for x
   x = 33,769,321.34/8,270.74
6. Step 6: Final answer
   x = 4,082.99