Finding the Fourth Proportional to 16,401.81, 24,603.12 and 5,309.67

Step by Step Solution

1. Step 1: Write the proportion equation
   16,401.81 : 24,603.12 = 5,309.67 : x
2. Step 2: Convert to fraction form
   16,401.81/24,603.12 = 5,309.67/x
3. Step 3: Cross multiply
   16,401.81x = 24,603.12 × 5,309.67
4. Step 4: Simplify right side
   16,401.81x = 130,634,448.17
5. Step 5: Solve for x
   x = 130,634,448.17/16,401.81
6. Step 6: Final answer
   x = 7,964.64