Finding the Fourth Proportional to 9,872.52, 13,624.31 and 5,396.46

Step by Step Solution

1. Step 1: Write the proportion equation
   9,872.52 : 13,624.31 = 5,396.46 : x
2. Step 2: Convert to fraction form
   9,872.52/13,624.31 = 5,396.46/x
3. Step 3: Cross multiply
   9,872.52x = 13,624.31 × 5,396.46
4. Step 4: Simplify right side
   9,872.52x = 73,523,057.43
5. Step 5: Solve for x
   x = 73,523,057.43/9,872.52
6. Step 6: Final answer
   x = 7,447.24