Finding the Fourth Proportional to 13,414.86, 18,511.56 and 7,446.42

Step by Step Solution

1. Step 1: Write the proportion equation
   13,414.86 : 18,511.56 = 7,446.42 : x
2. Step 2: Convert to fraction form
   13,414.86/18,511.56 = 7,446.42/x
3. Step 3: Cross multiply
   13,414.86x = 18,511.56 × 7,446.42
4. Step 4: Simplify right side
   13,414.86x = 137,844,850.62
5. Step 5: Solve for x
   x = 137,844,850.62/13,414.86
6. Step 6: Final answer
   x = 10,275.53