Finding the Fourth Proportional to 9,969.54, 13,757.79 and 5,493.71

Step by Step Solution

1. Step 1: Write the proportion equation
   9,969.54 : 13,757.79 = 5,493.71 : x
2. Step 2: Convert to fraction form
   9,969.54/13,757.79 = 5,493.71/x
3. Step 3: Cross multiply
   9,969.54x = 13,757.79 × 5,493.71
4. Step 4: Simplify right side
   9,969.54x = 75,581,308.50
5. Step 5: Solve for x
   x = 75,581,308.50/9,969.54
6. Step 6: Final answer
   x = 7,581.22