Finding the Fourth Proportional to 25,173.78, 34,740.69 and 13,843.74

Step by Step Solution

1. Step 1: Write the proportion equation
   25,173.78 : 34,740.69 = 13,843.74 : x
2. Step 2: Convert to fraction form
   25,173.78/34,740.69 = 13,843.74/x
3. Step 3: Cross multiply
   25,173.78x = 34,740.69 × 13,843.74
4. Step 4: Simplify right side
   25,173.78x = 480,941,079.78
5. Step 5: Solve for x
   x = 480,941,079.78/25,173.78
6. Step 6: Final answer
   x = 19,104.84