Finding the Fourth Proportional to 11,895.42, 17,843.43 and 3,998.06

Step by Step Solution

1. Step 1: Write the proportion equation
   11,895.42 : 17,843.43 = 3,998.06 : x
2. Step 2: Convert to fraction form
   11,895.42/17,843.43 = 3,998.06/x
3. Step 3: Cross multiply
   11,895.42x = 17,843.43 × 3,998.06
4. Step 4: Simplify right side
   11,895.42x = 71,338,994.54
5. Step 5: Solve for x
   x = 71,338,994.54/11,895.42
6. Step 6: Final answer
   x = 5,997.18