Finding the Fourth Proportional to 10,383.50, 15,581.73 and 4,227.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,383.50 : 15,581.73 = 4,227.50 : x
2. Step 2: Convert to fraction form
   10,383.50/15,581.73 = 4,227.50/x
3. Step 3: Cross multiply
   10,383.50x = 15,581.73 × 4,227.50
4. Step 4: Simplify right side
   10,383.50x = 65,871,763.58
5. Step 5: Solve for x
   x = 65,871,763.58/10,383.50
6. Step 6: Final answer
   x = 6,343.89