Finding the Fourth Proportional to 25,165.42, 34,728.72 and 13,835.40

Step by Step Solution

1. Step 1: Write the proportion equation
   25,165.42 : 34,728.72 = 13,835.40 : x
2. Step 2: Convert to fraction form
   25,165.42/34,728.72 = 13,835.40/x
3. Step 3: Cross multiply
   25,165.42x = 34,728.72 × 13,835.40
4. Step 4: Simplify right side
   25,165.42x = 480,485,732.69
5. Step 5: Solve for x
   x = 480,485,732.69/25,165.42
6. Step 6: Final answer
   x = 19,093.09