Finding the Fourth Proportional to 30,611.52, 42,249.50 and 17,872.25

Step by Step Solution

1. Step 1: Write the proportion equation
   30,611.52 : 42,249.50 = 17,872.25 : x
2. Step 2: Convert to fraction form
   30,611.52/42,249.50 = 17,872.25/x
3. Step 3: Cross multiply
   30,611.52x = 42,249.50 × 17,872.25
4. Step 4: Simplify right side
   30,611.52x = 755,093,392.79
5. Step 5: Solve for x
   x = 755,093,392.79/30,611.52
6. Step 6: Final answer
   x = 24,666.97