Finding the Fourth Proportional to 9,923.48, 13,694.36 and 5,447.31

Step by Step Solution

1. Step 1: Write the proportion equation
   9,923.48 : 13,694.36 = 5,447.31 : x
2. Step 2: Convert to fraction form
   9,923.48/13,694.36 = 5,447.31/x
3. Step 3: Cross multiply
   9,923.48x = 13,694.36 × 5,447.31
4. Step 4: Simplify right side
   9,923.48x = 74,597,396.94
5. Step 5: Solve for x
   x = 74,597,396.94/9,923.48
6. Step 6: Final answer
   x = 7,517.27