Finding the Fourth Proportional to 16,636.32, 24,960.42 and 7,144.65

Step by Step Solution

1. Step 1: Write the proportion equation
   16,636.32 : 24,960.42 = 7,144.65 : x
2. Step 2: Convert to fraction form
   16,636.32/24,960.42 = 7,144.65/x
3. Step 3: Cross multiply
   16,636.32x = 24,960.42 × 7,144.65
4. Step 4: Simplify right side
   16,636.32x = 178,333,464.75
5. Step 5: Solve for x
   x = 178,333,464.75/16,636.32
6. Step 6: Final answer
   x = 10,719.53