Finding the Fourth Proportional to 21,924.82, 30,255.96 and 12,493.18

Step by Step Solution

1. Step 1: Write the proportion equation
   21,924.82 : 30,255.96 = 12,493.18 : x
2. Step 2: Convert to fraction form
   21,924.82/30,255.96 = 12,493.18/x
3. Step 3: Cross multiply
   21,924.82x = 30,255.96 × 12,493.18
4. Step 4: Simplify right side
   21,924.82x = 377,993,154.35
5. Step 5: Solve for x
   x = 377,993,154.35/21,924.82
6. Step 6: Final answer
   x = 17,240.42