Finding the Fourth Proportional to 9,398.86, 12,967.52 and 5,419.48

Step by Step Solution

1. Step 1: Write the proportion equation
   9,398.86 : 12,967.52 = 5,419.48 : x
2. Step 2: Convert to fraction form
   9,398.86/12,967.52 = 5,419.48/x
3. Step 3: Cross multiply
   9,398.86x = 12,967.52 × 5,419.48
4. Step 4: Simplify right side
   9,398.86x = 70,277,215.29
5. Step 5: Solve for x
   x = 70,277,215.29/9,398.86
6. Step 6: Final answer
   x = 7,477.21