Finding the Fourth Proportional to 25,250.79, 34,859.46 and 19,572.78

Step by Step Solution

1. Step 1: Write the proportion equation
   25,250.79 : 34,859.46 = 19,572.78 : x
2. Step 2: Convert to fraction form
   25,250.79/34,859.46 = 19,572.78/x
3. Step 3: Cross multiply
   25,250.79x = 34,859.46 × 19,572.78
4. Step 4: Simplify right side
   25,250.79x = 682,296,541.50
5. Step 5: Solve for x
   x = 682,296,541.50/25,250.79
6. Step 6: Final answer
   x = 27,020.80