Finding the Fourth Proportional to 16,680.48, 23,019.08 and 9,126.69

Step by Step Solution

1. Step 1: Write the proportion equation
   16,680.48 : 23,019.08 = 9,126.69 : x
2. Step 2: Convert to fraction form
   16,680.48/23,019.08 = 9,126.69/x
3. Step 3: Cross multiply
   16,680.48x = 23,019.08 × 9,126.69
4. Step 4: Simplify right side
   16,680.48x = 210,088,007.25
5. Step 5: Solve for x
   x = 210,088,007.25/16,680.48
6. Step 6: Final answer
   x = 12,594.84