Finding the Fourth Proportional to 21,825.54, 30,119.25 and 12,395.54

Step by Step Solution

1. Step 1: Write the proportion equation
   21,825.54 : 30,119.25 = 12,395.54 : x
2. Step 2: Convert to fraction form
   21,825.54/30,119.25 = 12,395.54/x
3. Step 3: Cross multiply
   21,825.54x = 30,119.25 × 12,395.54
4. Step 4: Simplify right side
   21,825.54x = 373,344,368.15
5. Step 5: Solve for x
   x = 373,344,368.15/21,825.54
6. Step 6: Final answer
   x = 17,105.85