Finding the Fourth Proportional to 16,611.72, 24,841.82 and 12,397.95

Step by Step Solution

1. Step 1: Write the proportion equation
   16,611.72 : 24,841.82 = 12,397.95 : x
2. Step 2: Convert to fraction form
   16,611.72/24,841.82 = 12,397.95/x
3. Step 3: Cross multiply
   16,611.72x = 24,841.82 × 12,397.95
4. Step 4: Simplify right side
   16,611.72x = 307,987,642.27
5. Step 5: Solve for x
   x = 307,987,642.27/16,611.72
6. Step 6: Final answer
   x = 18,540.38