Finding the Fourth Proportional to 18,505.16, 25,536.82 and 10,121.48

Step by Step Solution

1. Step 1: Write the proportion equation
   18,505.16 : 25,536.82 = 10,121.48 : x
2. Step 2: Convert to fraction form
   18,505.16/25,536.82 = 10,121.48/x
3. Step 3: Cross multiply
   18,505.16x = 25,536.82 × 10,121.48
4. Step 4: Simplify right side
   18,505.16x = 258,470,412.89
5. Step 5: Solve for x
   x = 258,470,412.89/18,505.16
6. Step 6: Final answer
   x = 13,967.48