Finding the Fourth Proportional to 9,397.17, 12,969.77 and 5,418.45

Step by Step Solution

1. Step 1: Write the proportion equation
   9,397.17 : 12,969.77 = 5,418.45 : x
2. Step 2: Convert to fraction form
   9,397.17/12,969.77 = 5,418.45/x
3. Step 3: Cross multiply
   9,397.17x = 12,969.77 × 5,418.45
4. Step 4: Simplify right side
   9,397.17x = 70,276,023.16
5. Step 5: Solve for x
   x = 70,276,023.16/9,397.17
6. Step 6: Final answer
   x = 7,478.42