Finding the Fourth Proportional to 25,142.16, 34,680.72 and 18,078.04

Step by Step Solution

1. Step 1: Write the proportion equation
   25,142.16 : 34,680.72 = 18,078.04 : x
2. Step 2: Convert to fraction form
   25,142.16/34,680.72 = 18,078.04/x
3. Step 3: Cross multiply
   25,142.16x = 34,680.72 × 18,078.04
4. Step 4: Simplify right side
   25,142.16x = 626,959,443.39
5. Step 5: Solve for x
   x = 626,959,443.39/25,142.16
6. Step 6: Final answer
   x = 24,936.58