Finding the Fourth Proportional to 19,123.92, 28,665.37 and 9,249.62

Step by Step Solution

1. Step 1: Write the proportion equation
   19,123.92 : 28,665.37 = 9,249.62 : x
2. Step 2: Convert to fraction form
   19,123.92/28,665.37 = 9,249.62/x
3. Step 3: Cross multiply
   19,123.92x = 28,665.37 × 9,249.62
4. Step 4: Simplify right side
   19,123.92x = 265,143,647.89
5. Step 5: Solve for x
   x = 265,143,647.89/19,123.92
6. Step 6: Final answer
   x = 13,864.50