Finding the Fourth Proportional to 25,251.89, 34,847.46 and 13,921.34

Step by Step Solution

1. Step 1: Write the proportion equation
   25,251.89 : 34,847.46 = 13,921.34 : x
2. Step 2: Convert to fraction form
   25,251.89/34,847.46 = 13,921.34/x
3. Step 3: Cross multiply
   25,251.89x = 34,847.46 × 13,921.34
4. Step 4: Simplify right side
   25,251.89x = 485,123,164.56
5. Step 5: Solve for x
   x = 485,123,164.56/25,251.89
6. Step 6: Final answer
   x = 19,211.36