Finding the Fourth Proportional to 16,401.30, 24,605.56 and 5,309.12

Step by Step Solution

1. Step 1: Write the proportion equation
   16,401.30 : 24,605.56 = 5,309.12 : x
2. Step 2: Convert to fraction form
   16,401.30/24,605.56 = 5,309.12/x
3. Step 3: Cross multiply
   16,401.30x = 24,605.56 × 5,309.12
4. Step 4: Simplify right side
   16,401.30x = 130,633,870.71
5. Step 5: Solve for x
   x = 130,633,870.71/16,401.30
6. Step 6: Final answer
   x = 7,964.85