Finding the Fourth Proportional to 9,940.29, 13,718.79 and 5,961.27

Step by Step Solution

1. Step 1: Write the proportion equation
   9,940.29 : 13,718.79 = 5,961.27 : x
2. Step 2: Convert to fraction form
   9,940.29/13,718.79 = 5,961.27/x
3. Step 3: Cross multiply
   9,940.29x = 13,718.79 × 5,961.27
4. Step 4: Simplify right side
   9,940.29x = 81,781,411.26
5. Step 5: Solve for x
   x = 81,781,411.26/9,940.29
6. Step 6: Final answer
   x = 8,227.27