Finding the Fourth Proportional to 9,397.56, 12,968.42 and 5,418.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,397.56 : 12,968.42 = 5,418.56 : x
2. Step 2: Convert to fraction form
   9,397.56/12,968.42 = 5,418.56/x
3. Step 3: Cross multiply
   9,397.56x = 12,968.42 × 5,418.56
4. Step 4: Simplify right side
   9,397.56x = 70,270,161.88
5. Step 5: Solve for x
   x = 70,270,161.88/9,397.56
6. Step 6: Final answer
   x = 7,477.49