Finding the Fourth Proportional to 10,155.96, 15,229.90 and 3,912.53

Step by Step Solution

1. Step 1: Write the proportion equation
   10,155.96 : 15,229.90 = 3,912.53 : x
2. Step 2: Convert to fraction form
   10,155.96/15,229.90 = 3,912.53/x
3. Step 3: Cross multiply
   10,155.96x = 15,229.90 × 3,912.53
4. Step 4: Simplify right side
   10,155.96x = 59,587,369.39
5. Step 5: Solve for x
   x = 59,587,369.39/10,155.96
6. Step 6: Final answer
   x = 5,867.23