Finding the Fourth Proportional to 9,909.30, 13,674.78 and 5,433.24

Step by Step Solution

1. Step 1: Write the proportion equation
   9,909.30 : 13,674.78 = 5,433.24 : x
2. Step 2: Convert to fraction form
   9,909.30/13,674.78 = 5,433.24/x
3. Step 3: Cross multiply
   9,909.30x = 13,674.78 × 5,433.24
4. Step 4: Simplify right side
   9,909.30x = 74,298,361.69
5. Step 5: Solve for x
   x = 74,298,361.69/9,909.30
6. Step 6: Final answer
   x = 7,497.84