Finding the Fourth Proportional to 13,727.50, 18,944.80 and 7,760.18

Step by Step Solution

1. Step 1: Write the proportion equation
   13,727.50 : 18,944.80 = 7,760.18 : x
2. Step 2: Convert to fraction form
   13,727.50/18,944.80 = 7,760.18/x
3. Step 3: Cross multiply
   13,727.50x = 18,944.80 × 7,760.18
4. Step 4: Simplify right side
   13,727.50x = 147,015,086.03
5. Step 5: Solve for x
   x = 147,015,086.03/13,727.50
6. Step 6: Final answer
   x = 10,709.53