Finding the Fourth Proportional to 9,397.28, 12,968.43 and 5,417.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,397.28 : 12,968.43 = 5,417.72 : x
2. Step 2: Convert to fraction form
   9,397.28/12,968.43 = 5,417.72/x
3. Step 3: Cross multiply
   9,397.28x = 12,968.43 × 5,417.72
4. Step 4: Simplify right side
   9,397.28x = 70,259,322.58
5. Step 5: Solve for x
   x = 70,259,322.58/9,397.28
6. Step 6: Final answer
   x = 7,476.56