Finding the Fourth Proportional to 25,458.27, 35,139.60 and 17,906.37

Step by Step Solution

1. Step 1: Write the proportion equation
   25,458.27 : 35,139.60 = 17,906.37 : x
2. Step 2: Convert to fraction form
   25,458.27/35,139.60 = 17,906.37/x
3. Step 3: Cross multiply
   25,458.27x = 35,139.60 × 17,906.37
4. Step 4: Simplify right side
   25,458.27x = 629,222,679.25
5. Step 5: Solve for x
   x = 629,222,679.25/25,458.27
6. Step 6: Final answer
   x = 24,715.85