Finding the Fourth Proportional to 9,721.29, 13,414.83 and 5,472.53

Step by Step Solution

1. Step 1: Write the proportion equation
   9,721.29 : 13,414.83 = 5,472.53 : x
2. Step 2: Convert to fraction form
   9,721.29/13,414.83 = 5,472.53/x
3. Step 3: Cross multiply
   9,721.29x = 13,414.83 × 5,472.53
4. Step 4: Simplify right side
   9,721.29x = 73,412,992.55
5. Step 5: Solve for x
   x = 73,412,992.55/9,721.29
6. Step 6: Final answer
   x = 7,551.77