Finding the Fourth Proportional to 25,172.72, 34,737.61 and 13,842.20

Step by Step Solution

1. Step 1: Write the proportion equation
   25,172.72 : 34,737.61 = 13,842.20 : x
2. Step 2: Convert to fraction form
   25,172.72/34,737.61 = 13,842.20/x
3. Step 3: Cross multiply
   25,172.72x = 34,737.61 × 13,842.20
4. Step 4: Simplify right side
   25,172.72x = 480,844,984.03
5. Step 5: Solve for x
   x = 480,844,984.03/25,172.72
6. Step 6: Final answer
   x = 19,101.83