Finding the Fourth Proportional to 11,942.29, 17,922.71 and 8,270.25

Step by Step Solution

1. Step 1: Write the proportion equation
   11,942.29 : 17,922.71 = 8,270.25 : x
2. Step 2: Convert to fraction form
   11,942.29/17,922.71 = 8,270.25/x
3. Step 3: Cross multiply
   11,942.29x = 17,922.71 × 8,270.25
4. Step 4: Simplify right side
   11,942.29x = 148,225,292.38
5. Step 5: Solve for x
   x = 148,225,292.38/11,942.29
6. Step 6: Final answer
   x = 12,411.80