Finding the Fourth Proportional to 25,436.50, 35,105.61 and 14,258.50

Step by Step Solution

1. Step 1: Write the proportion equation
   25,436.50 : 35,105.61 = 14,258.50 : x
2. Step 2: Convert to fraction form
   25,436.50/35,105.61 = 14,258.50/x
3. Step 3: Cross multiply
   25,436.50x = 35,105.61 × 14,258.50
4. Step 4: Simplify right side
   25,436.50x = 500,553,340.19
5. Step 5: Solve for x
   x = 500,553,340.19/25,436.50
6. Step 6: Final answer
   x = 19,678.55