Finding the Fourth Proportional to 16,288.89, 24,555.39 and 15,203.89

Step by Step Solution

1. Step 1: Write the proportion equation
   16,288.89 : 24,555.39 = 15,203.89 : x
2. Step 2: Convert to fraction form
   16,288.89/24,555.39 = 15,203.89/x
3. Step 3: Cross multiply
   16,288.89x = 24,555.39 × 15,203.89
4. Step 4: Simplify right side
   16,288.89x = 373,337,369.54
5. Step 5: Solve for x
   x = 373,337,369.54/16,288.89
6. Step 6: Final answer
   x = 22,919.76