Finding the Fourth Proportional to 9,418.80, 12,997.49 and 5,441.19

Step by Step Solution

1. Step 1: Write the proportion equation
   9,418.80 : 12,997.49 = 5,441.19 : x
2. Step 2: Convert to fraction form
   9,418.80/12,997.49 = 5,441.19/x
3. Step 3: Cross multiply
   9,418.80x = 12,997.49 × 5,441.19
4. Step 4: Simplify right side
   9,418.80x = 70,721,812.61
5. Step 5: Solve for x
   x = 70,721,812.61/9,418.80
6. Step 6: Final answer
   x = 7,508.58