Finding the Fourth Proportional to 11,843.39, 17,761.23 and 3,943.78

Step by Step Solution

1. Step 1: Write the proportion equation
   11,843.39 : 17,761.23 = 3,943.78 : x
2. Step 2: Convert to fraction form
   11,843.39/17,761.23 = 3,943.78/x
3. Step 3: Cross multiply
   11,843.39x = 17,761.23 × 3,943.78
4. Step 4: Simplify right side
   11,843.39x = 70,046,393.51
5. Step 5: Solve for x
   x = 70,046,393.51/11,843.39
6. Step 6: Final answer
   x = 5,914.39