Finding the Fourth Proportional to 18,804.42, 25,958.52 and 12,434.94

Step by Step Solution

1. Step 1: Write the proportion equation
   18,804.42 : 25,958.52 = 12,434.94 : x
2. Step 2: Convert to fraction form
   18,804.42/25,958.52 = 12,434.94/x
3. Step 3: Cross multiply
   18,804.42x = 25,958.52 × 12,434.94
4. Step 4: Simplify right side
   18,804.42x = 322,792,638.69
5. Step 5: Solve for x
   x = 322,792,638.69/18,804.42
6. Step 6: Final answer
   x = 17,165.79