Finding the Fourth Proportional to 16,208.90, 24,142.89 and 15,450.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,208.90 : 24,142.89 = 15,450.50 : x
2. Step 2: Convert to fraction form
   16,208.90/24,142.89 = 15,450.50/x
3. Step 3: Cross multiply
   16,208.90x = 24,142.89 × 15,450.50
4. Step 4: Simplify right side
   16,208.90x = 373,019,644.69
5. Step 5: Solve for x
   x = 373,019,644.69/16,208.90
6. Step 6: Final answer
   x = 23,013.26