Finding the Fourth Proportional to 10,757.50, 14,823.46 and 8,239.61

Step by Step Solution

1. Step 1: Write the proportion equation
   10,757.50 : 14,823.46 = 8,239.61 : x
2. Step 2: Convert to fraction form
   10,757.50/14,823.46 = 8,239.61/x
3. Step 3: Cross multiply
   10,757.50x = 14,823.46 × 8,239.61
4. Step 4: Simplify right side
   10,757.50x = 122,139,529.25
5. Step 5: Solve for x
   x = 122,139,529.25/10,757.50
6. Step 6: Final answer
   x = 11,353.90