Finding the Fourth Proportional to 25,101.40, 34,638.42 and 13,923.40

Step by Step Solution

1. Step 1: Write the proportion equation
   25,101.40 : 34,638.42 = 13,923.40 : x
2. Step 2: Convert to fraction form
   25,101.40/34,638.42 = 13,923.40/x
3. Step 3: Cross multiply
   25,101.40x = 34,638.42 × 13,923.40
4. Step 4: Simplify right side
   25,101.40x = 482,284,577.03
5. Step 5: Solve for x
   x = 482,284,577.03/25,101.40
6. Step 6: Final answer
   x = 19,213.45