Finding the Fourth Proportional to 9,348.97, 12,900.22 and 5,369.31

Step by Step Solution

1. Step 1: Write the proportion equation
   9,348.97 : 12,900.22 = 5,369.31 : x
2. Step 2: Convert to fraction form
   9,348.97/12,900.22 = 5,369.31/x
3. Step 3: Cross multiply
   9,348.97x = 12,900.22 × 5,369.31
4. Step 4: Simplify right side
   9,348.97x = 69,265,340.86
5. Step 5: Solve for x
   x = 69,265,340.86/9,348.97
6. Step 6: Final answer
   x = 7,408.87