Finding the Fourth Proportional to 16,401.63, 24,603.91 and 7,039.55

Step by Step Solution

1. Step 1: Write the proportion equation
   16,401.63 : 24,603.91 = 7,039.55 : x
2. Step 2: Convert to fraction form
   16,401.63/24,603.91 = 7,039.55/x
3. Step 3: Cross multiply
   16,401.63x = 24,603.91 × 7,039.55
4. Step 4: Simplify right side
   16,401.63x = 173,200,331.62
5. Step 5: Solve for x
   x = 173,200,331.62/16,401.63
6. Step 6: Final answer
   x = 10,559.95