Finding the Fourth Proportional to 11,839.82, 17,757.83 and 3,947.84

Step by Step Solution

1. Step 1: Write the proportion equation
   11,839.82 : 17,757.83 = 3,947.84 : x
2. Step 2: Convert to fraction form
   11,839.82/17,757.83 = 3,947.84/x
3. Step 3: Cross multiply
   11,839.82x = 17,757.83 × 3,947.84
4. Step 4: Simplify right side
   11,839.82x = 70,105,059.26
5. Step 5: Solve for x
   x = 70,105,059.26/11,839.82
6. Step 6: Final answer
   x = 5,921.13