Finding the Fourth Proportional to 30,843.24, 42,564.24 and 18,105.54

Step by Step Solution

1. Step 1: Write the proportion equation
   30,843.24 : 42,564.24 = 18,105.54 : x
2. Step 2: Convert to fraction form
   30,843.24/42,564.24 = 18,105.54/x
3. Step 3: Cross multiply
   30,843.24x = 42,564.24 × 18,105.54
4. Step 4: Simplify right side
   30,843.24x = 770,648,549.89
5. Step 5: Solve for x
   x = 770,648,549.89/30,843.24
6. Step 6: Final answer
   x = 24,985.98