Finding the Fourth Proportional to 10,155.80, 15,234.02 and 2,760.42

Step by Step Solution

1. Step 1: Write the proportion equation
   10,155.80 : 15,234.02 = 2,760.42 : x
2. Step 2: Convert to fraction form
   10,155.80/15,234.02 = 2,760.42/x
3. Step 3: Cross multiply
   10,155.80x = 15,234.02 × 2,760.42
4. Step 4: Simplify right side
   10,155.80x = 42,052,279.69
5. Step 5: Solve for x
   x = 42,052,279.69/10,155.80
6. Step 6: Final answer
   x = 4,140.71