Finding the Fourth Proportional to 20,648.46, 30,968.91 and 9,401.14

Step by Step Solution

1. Step 1: Write the proportion equation
   20,648.46 : 30,968.91 = 9,401.14 : x
2. Step 2: Convert to fraction form
   20,648.46/30,968.91 = 9,401.14/x
3. Step 3: Cross multiply
   20,648.46x = 30,968.91 × 9,401.14
4. Step 4: Simplify right side
   20,648.46x = 291,143,097.27
5. Step 5: Solve for x
   x = 291,143,097.27/20,648.46
6. Step 6: Final answer
   x = 14,099.99