Finding the Fourth Proportional to 13,414.20, 18,516.83 and 10,066.71

Step by Step Solution

1. Step 1: Write the proportion equation
   13,414.20 : 18,516.83 = 10,066.71 : x
2. Step 2: Convert to fraction form
   13,414.20/18,516.83 = 10,066.71/x
3. Step 3: Cross multiply
   13,414.20x = 18,516.83 × 10,066.71
4. Step 4: Simplify right side
   13,414.20x = 186,403,576.83
5. Step 5: Solve for x
   x = 186,403,576.83/13,414.20
6. Step 6: Final answer
   x = 13,895.99