Finding the Fourth Proportional to 16,912.10, 25,319.55 and 10,351.10

Step by Step Solution

1. Step 1: Write the proportion equation
   16,912.10 : 25,319.55 = 10,351.10 : x
2. Step 2: Convert to fraction form
   16,912.10/25,319.55 = 10,351.10/x
3. Step 3: Cross multiply
   16,912.10x = 25,319.55 × 10,351.10
4. Step 4: Simplify right side
   16,912.10x = 262,085,194.01
5. Step 5: Solve for x
   x = 262,085,194.01/16,912.10
6. Step 6: Final answer
   x = 15,496.90