Finding the Fourth Proportional to 16,485.89, 24,736.01 and 8,161.17

Step by Step Solution

1. Step 1: Write the proportion equation
   16,485.89 : 24,736.01 = 8,161.17 : x
2. Step 2: Convert to fraction form
   16,485.89/24,736.01 = 8,161.17/x
3. Step 3: Cross multiply
   16,485.89x = 24,736.01 × 8,161.17
4. Step 4: Simplify right side
   16,485.89x = 201,874,782.73
5. Step 5: Solve for x
   x = 201,874,782.73/16,485.89
6. Step 6: Final answer
   x = 12,245.31