Finding the Fourth Proportional to 18,404.69, 25,398.78 and 10,447.16

Step by Step Solution

1. Step 1: Write the proportion equation
   18,404.69 : 25,398.78 = 10,447.16 : x
2. Step 2: Convert to fraction form
   18,404.69/25,398.78 = 10,447.16/x
3. Step 3: Cross multiply
   18,404.69x = 25,398.78 × 10,447.16
4. Step 4: Simplify right side
   18,404.69x = 265,345,118.46
5. Step 5: Solve for x
   x = 265,345,118.46/18,404.69
6. Step 6: Final answer
   x = 14,417.26