Finding the Fourth Proportional to 9,372.39, 12,934.46 and 5,393.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,372.39 : 12,934.46 = 5,393.42 : x
2. Step 2: Convert to fraction form
   9,372.39/12,934.46 = 5,393.42/x
3. Step 3: Cross multiply
   9,372.39x = 12,934.46 × 5,393.42
4. Step 4: Simplify right side
   9,372.39x = 69,760,883.61
5. Step 5: Solve for x
   x = 69,760,883.61/9,372.39
6. Step 6: Final answer
   x = 7,443.23