Finding the Fourth Proportional to 16,580.88, 24,824.82 and 12,440.16

Step by Step Solution

1. Step 1: Write the proportion equation
   16,580.88 : 24,824.82 = 12,440.16 : x
2. Step 2: Convert to fraction form
   16,580.88/24,824.82 = 12,440.16/x
3. Step 3: Cross multiply
   16,580.88x = 24,824.82 × 12,440.16
4. Step 4: Simplify right side
   16,580.88x = 308,824,732.77
5. Step 5: Solve for x
   x = 308,824,732.77/16,580.88
6. Step 6: Final answer
   x = 18,625.35