Finding the Fourth Proportional to 16,805.10, 23,190.12 and 9,251.15

Step by Step Solution

1. Step 1: Write the proportion equation
   16,805.10 : 23,190.12 = 9,251.15 : x
2. Step 2: Convert to fraction form
   16,805.10/23,190.12 = 9,251.15/x
3. Step 3: Cross multiply
   16,805.10x = 23,190.12 × 9,251.15
4. Step 4: Simplify right side
   16,805.10x = 214,535,162.69
5. Step 5: Solve for x
   x = 214,535,162.69/16,805.10
6. Step 6: Final answer
   x = 12,766.07