Finding the Fourth Proportional to 25,256.15, 34,853.76 and 13,926.05

Step by Step Solution

1. Step 1: Write the proportion equation
   25,256.15 : 34,853.76 = 13,926.05 : x
2. Step 2: Convert to fraction form
   25,256.15/34,853.76 = 13,926.05/x
3. Step 3: Cross multiply
   25,256.15x = 34,853.76 × 13,926.05
4. Step 4: Simplify right side
   25,256.15x = 485,375,160.88
5. Step 5: Solve for x
   x = 485,375,160.88/25,256.15
6. Step 6: Final answer
   x = 19,218.09