Finding the Fourth Proportional to 9,429.57, 13,013.37 and 5,237.82

Step by Step Solution

1. Step 1: Write the proportion equation
   9,429.57 : 13,013.37 = 5,237.82 : x
2. Step 2: Convert to fraction form
   9,429.57/13,013.37 = 5,237.82/x
3. Step 3: Cross multiply
   9,429.57x = 13,013.37 × 5,237.82
4. Step 4: Simplify right side
   9,429.57x = 68,161,689.65
5. Step 5: Solve for x
   x = 68,161,689.65/9,429.57
6. Step 6: Final answer
   x = 7,228.50