Finding the Fourth Proportional to 9,417.40, 12,996.78 and 5,227

Step by Step Solution

1. Step 1: Write the proportion equation
   9,417.40 : 12,996.78 = 5,227 : x
2. Step 2: Convert to fraction form
   9,417.40/12,996.78 = 5,227/x
3. Step 3: Cross multiply
   9,417.40x = 12,996.78 × 5,227
4. Step 4: Simplify right side
   9,417.40x = 67,934,169.06
5. Step 5: Solve for x
   x = 67,934,169.06/9,417.40
6. Step 6: Final answer
   x = 7,213.69