Finding the Fourth Proportional to 11,839.83, 17,760.71 and 3,942.06

Step by Step Solution

1. Step 1: Write the proportion equation
   11,839.83 : 17,760.71 = 3,942.06 : x
2. Step 2: Convert to fraction form
   11,839.83/17,760.71 = 3,942.06/x
3. Step 3: Cross multiply
   11,839.83x = 17,760.71 × 3,942.06
4. Step 4: Simplify right side
   11,839.83x = 70,013,764.75
5. Step 5: Solve for x
   x = 70,013,764.75/11,839.83
6. Step 6: Final answer
   x = 5,913.41