Finding the Fourth Proportional to 10,155.75, 15,233.60 and 2,761.28

Step by Step Solution

1. Step 1: Write the proportion equation
   10,155.75 : 15,233.60 = 2,761.28 : x
2. Step 2: Convert to fraction form
   10,155.75/15,233.60 = 2,761.28/x
3. Step 3: Cross multiply
   10,155.75x = 15,233.60 × 2,761.28
4. Step 4: Simplify right side
   10,155.75x = 42,064,183.12
5. Step 5: Solve for x
   x = 42,064,183.12/10,155.75
6. Step 6: Final answer
   x = 4,141.91