Finding the Fourth Proportional to 11,238, 16,864.68 and 3,942

Step by Step Solution

1. Step 1: Write the proportion equation
   11,238 : 16,864.68 = 3,942 : x
2. Step 2: Convert to fraction form
   11,238/16,864.68 = 3,942/x
3. Step 3: Cross multiply
   11,238x = 16,864.68 × 3,942
4. Step 4: Simplify right side
   11,238x = 66,480,568.56
5. Step 5: Solve for x
   x = 66,480,568.56/11,238
6. Step 6: Final answer
   x = 5,915.69