Finding the Fourth Proportional to 12,401.67, 18,627.68 and 10,953.70

Step by Step Solution

1. Step 1: Write the proportion equation
   12,401.67 : 18,627.68 = 10,953.70 : x
2. Step 2: Convert to fraction form
   12,401.67/18,627.68 = 10,953.70/x
3. Step 3: Cross multiply
   12,401.67x = 18,627.68 × 10,953.70
4. Step 4: Simplify right side
   12,401.67x = 204,042,018.42
5. Step 5: Solve for x
   x = 204,042,018.42/12,401.67
6. Step 6: Final answer
   x = 16,452.79