Finding the Fourth Proportional to 18,449.78, 25,460.69 and 10,066.28

Step by Step Solution

1. Step 1: Write the proportion equation
   18,449.78 : 25,460.69 = 10,066.28 : x
2. Step 2: Convert to fraction form
   18,449.78/25,460.69 = 10,066.28/x
3. Step 3: Cross multiply
   18,449.78x = 25,460.69 × 10,066.28
4. Step 4: Simplify right side
   18,449.78x = 256,294,447.85
5. Step 5: Solve for x
   x = 256,294,447.85/18,449.78
6. Step 6: Final answer
   x = 13,891.46