Finding the Fourth Proportional to 9,340.38, 12,890.50 and 5,362.26

Step by Step Solution

1. Step 1: Write the proportion equation
   9,340.38 : 12,890.50 = 5,362.26 : x
2. Step 2: Convert to fraction form
   9,340.38/12,890.50 = 5,362.26/x
3. Step 3: Cross multiply
   9,340.38x = 12,890.50 × 5,362.26
4. Step 4: Simplify right side
   9,340.38x = 69,122,185.72
5. Step 5: Solve for x
   x = 69,122,185.72/9,340.38
6. Step 6: Final answer
   x = 7,400.36