Finding the Fourth Proportional to 25,150.50, 34,707.69 and 13,972.50

Step by Step Solution

1. Step 1: Write the proportion equation
   25,150.50 : 34,707.69 = 13,972.50 : x
2. Step 2: Convert to fraction form
   25,150.50/34,707.69 = 13,972.50/x
3. Step 3: Cross multiply
   25,150.50x = 34,707.69 × 13,972.50
4. Step 4: Simplify right side
   25,150.50x = 484,953,198.53
5. Step 5: Solve for x
   x = 484,953,198.53/25,150.50
6. Step 6: Final answer
   x = 19,282.05