Finding the Fourth Proportional to 16,401.90, 24,603.61 and 5,309.46

Step by Step Solution

1. Step 1: Write the proportion equation
   16,401.90 : 24,603.61 = 5,309.46 : x
2. Step 2: Convert to fraction form
   16,401.90/24,603.61 = 5,309.46/x
3. Step 3: Cross multiply
   16,401.90x = 24,603.61 × 5,309.46
4. Step 4: Simplify right side
   16,401.90x = 130,631,760.13
5. Step 5: Solve for x
   x = 130,631,760.13/16,401.90
6. Step 6: Final answer
   x = 7,964.43