Finding the Fourth Proportional to 21,745.33, 30,008.67 and 12,185.24

Step by Step Solution

1. Step 1: Write the proportion equation
   21,745.33 : 30,008.67 = 12,185.24 : x
2. Step 2: Convert to fraction form
   21,745.33/30,008.67 = 12,185.24/x
3. Step 3: Cross multiply
   21,745.33x = 30,008.67 × 12,185.24
4. Step 4: Simplify right side
   21,745.33x = 365,662,846.03
5. Step 5: Solve for x
   x = 365,662,846.03/21,745.33
6. Step 6: Final answer
   x = 16,815.70