Finding the Fourth Proportional to 16,402.63, 24,605.41 and 7,040.55

Step by Step Solution

1. Step 1: Write the proportion equation
   16,402.63 : 24,605.41 = 7,040.55 : x
2. Step 2: Convert to fraction form
   16,402.63/24,605.41 = 7,040.55/x
3. Step 3: Cross multiply
   16,402.63x = 24,605.41 × 7,040.55
4. Step 4: Simplify right side
   16,402.63x = 173,235,619.38
5. Step 5: Solve for x
   x = 173,235,619.38/16,402.63
6. Step 6: Final answer
   x = 10,561.45