Finding the Fourth Proportional to 13,364.69, 18,443.48 and 7,396.38

Step by Step Solution

1. Step 1: Write the proportion equation
   13,364.69 : 18,443.48 = 7,396.38 : x
2. Step 2: Convert to fraction form
   13,364.69/18,443.48 = 7,396.38/x
3. Step 3: Cross multiply
   13,364.69x = 18,443.48 × 7,396.38
4. Step 4: Simplify right side
   13,364.69x = 136,414,949.62
5. Step 5: Solve for x
   x = 136,414,949.62/13,364.69
6. Step 6: Final answer
   x = 10,207.12