Finding the Fourth Proportional to 16,912.95, 23,320.76 and 12,650.35

Step by Step Solution

1. Step 1: Write the proportion equation
   16,912.95 : 23,320.76 = 12,650.35 : x
2. Step 2: Convert to fraction form
   16,912.95/23,320.76 = 12,650.35/x
3. Step 3: Cross multiply
   16,912.95x = 23,320.76 × 12,650.35
4. Step 4: Simplify right side
   16,912.95x = 295,015,776.27
5. Step 5: Solve for x
   x = 295,015,776.27/16,912.95
6. Step 6: Final answer
   x = 17,443.19