Finding the Fourth Proportional to 9,144.05, 12,619.22 and 5,367.38

Step by Step Solution

1. Step 1: Write the proportion equation
   9,144.05 : 12,619.22 = 5,367.38 : x
2. Step 2: Convert to fraction form
   9,144.05/12,619.22 = 5,367.38/x
3. Step 3: Cross multiply
   9,144.05x = 12,619.22 × 5,367.38
4. Step 4: Simplify right side
   9,144.05x = 67,732,059.11
5. Step 5: Solve for x
   x = 67,732,059.11/9,144.05
6. Step 6: Final answer
   x = 7,407.23