Finding the Fourth Proportional to 16,118.76, 24,185.07 and 8,728.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,118.76 : 24,185.07 = 8,728.50 : x
2. Step 2: Convert to fraction form
   16,118.76/24,185.07 = 8,728.50/x
3. Step 3: Cross multiply
   16,118.76x = 24,185.07 × 8,728.50
4. Step 4: Simplify right side
   16,118.76x = 211,099,383.50
5. Step 5: Solve for x
   x = 211,099,383.50/16,118.76
6. Step 6: Final answer
   x = 13,096.50