Finding the Fourth Proportional to 21,935.88, 30,258.50 and 13,441.82

Step by Step Solution

1. Step 1: Write the proportion equation
   21,935.88 : 30,258.50 = 13,441.82 : x
2. Step 2: Convert to fraction form
   21,935.88/30,258.50 = 13,441.82/x
3. Step 3: Cross multiply
   21,935.88x = 30,258.50 × 13,441.82
4. Step 4: Simplify right side
   21,935.88x = 406,729,091.97
5. Step 5: Solve for x
   x = 406,729,091.97/21,935.88
6. Step 6: Final answer
   x = 18,541.73