Finding the Fourth Proportional to 11,839.11, 17,761.55 and 3,941.61

Step by Step Solution

1. Step 1: Write the proportion equation
   11,839.11 : 17,761.55 = 3,941.61 : x
2. Step 2: Convert to fraction form
   11,839.11/17,761.55 = 3,941.61/x
3. Step 3: Cross multiply
   11,839.11x = 17,761.55 × 3,941.61
4. Step 4: Simplify right side
   11,839.11x = 70,009,103.10
5. Step 5: Solve for x
   x = 70,009,103.10/11,839.11
6. Step 6: Final answer
   x = 5,913.38