Finding the Fourth Proportional to 11,928.30, 16,433.98 and 9,230.24

Step by Step Solution

1. Step 1: Write the proportion equation
   11,928.30 : 16,433.98 = 9,230.24 : x
2. Step 2: Convert to fraction form
   11,928.30/16,433.98 = 9,230.24/x
3. Step 3: Cross multiply
   11,928.30x = 16,433.98 × 9,230.24
4. Step 4: Simplify right side
   11,928.30x = 151,689,597.56
5. Step 5: Solve for x
   x = 151,689,597.56/11,928.30
6. Step 6: Final answer
   x = 12,716.78