Finding the Fourth Proportional to 9,606.72, 13,257.21 and 5,357.82

Step by Step Solution

1. Step 1: Write the proportion equation
   9,606.72 : 13,257.21 = 5,357.82 : x
2. Step 2: Convert to fraction form
   9,606.72/13,257.21 = 5,357.82/x
3. Step 3: Cross multiply
   9,606.72x = 13,257.21 × 5,357.82
4. Step 4: Simplify right side
   9,606.72x = 71,029,744.88
5. Step 5: Solve for x
   x = 71,029,744.88/9,606.72
6. Step 6: Final answer
   x = 7,393.76