Finding the Fourth Proportional to 25,120, 34,665.60 and 13,944.16

Step by Step Solution

1. Step 1: Write the proportion equation
   25,120 : 34,665.60 = 13,944.16 : x
2. Step 2: Convert to fraction form
   25,120/34,665.60 = 13,944.16/x
3. Step 3: Cross multiply
   25,120x = 34,665.60 × 13,944.16
4. Step 4: Simplify right side
   25,120x = 483,382,672.90
5. Step 5: Solve for x
   x = 483,382,672.90/25,120
6. Step 6: Final answer
   x = 19,242.94