Finding the Fourth Proportional to 25,256.96, 34,856.96 and 14,078.72

Step by Step Solution

1. Step 1: Write the proportion equation
   25,256.96 : 34,856.96 = 14,078.72 : x
2. Step 2: Convert to fraction form
   25,256.96/34,856.96 = 14,078.72/x
3. Step 3: Cross multiply
   25,256.96x = 34,856.96 × 14,078.72
4. Step 4: Simplify right side
   25,256.96x = 490,741,379.89
5. Step 5: Solve for x
   x = 490,741,379.89/25,256.96
6. Step 6: Final answer
   x = 19,429.95