Finding the Fourth Proportional to 10,857.24, 14,982.32 and 10,538.76

Step by Step Solution

1. Step 1: Write the proportion equation
   10,857.24 : 14,982.32 = 10,538.76 : x
2. Step 2: Convert to fraction form
   10,857.24/14,982.32 = 10,538.76/x
3. Step 3: Cross multiply
   10,857.24x = 14,982.32 × 10,538.76
4. Step 4: Simplify right side
   10,857.24x = 157,895,013.70
5. Step 5: Solve for x
   x = 157,895,013.70/10,857.24
6. Step 6: Final answer
   x = 14,542.83