Finding the Fourth Proportional to 30,638.72, 42,249.38 and 24,255.12

Step by Step Solution

1. Step 1: Write the proportion equation
   30,638.72 : 42,249.38 = 24,255.12 : x
2. Step 2: Convert to fraction form
   30,638.72/42,249.38 = 24,255.12/x
3. Step 3: Cross multiply
   30,638.72x = 42,249.38 × 24,255.12
4. Step 4: Simplify right side
   30,638.72x = 1,024,763,781.83
5. Step 5: Solve for x
   x = 1,024,763,781.83/30,638.72
6. Step 6: Final answer
   x = 33,446.69