Finding the Fourth Proportional to 16,383.98, 24,557.88 and 8,487.09

Step by Step Solution

1. Step 1: Write the proportion equation
   16,383.98 : 24,557.88 = 8,487.09 : x
2. Step 2: Convert to fraction form
   16,383.98/24,557.88 = 8,487.09/x
3. Step 3: Cross multiply
   16,383.98x = 24,557.88 × 8,487.09
4. Step 4: Simplify right side
   16,383.98x = 208,424,937.77
5. Step 5: Solve for x
   x = 208,424,937.77/16,383.98
6. Step 6: Final answer
   x = 12,721.26