Finding the Fourth Proportional to 25,618.50, 38,434.23 and 7,150.50

Step by Step Solution

1. Step 1: Write the proportion equation
   25,618.50 : 38,434.23 = 7,150.50 : x
2. Step 2: Convert to fraction form
   25,618.50/38,434.23 = 7,150.50/x
3. Step 3: Cross multiply
   25,618.50x = 38,434.23 × 7,150.50
4. Step 4: Simplify right side
   25,618.50x = 274,823,961.62
5. Step 5: Solve for x
   x = 274,823,961.62/25,618.50
6. Step 6: Final answer
   x = 10,727.56