Finding the Fourth Proportional to 10,105.80, 15,158.36 and 2,709.86

Step by Step Solution

1. Step 1: Write the proportion equation
   10,105.80 : 15,158.36 = 2,709.86 : x
2. Step 2: Convert to fraction form
   10,105.80/15,158.36 = 2,709.86/x
3. Step 3: Cross multiply
   10,105.80x = 15,158.36 × 2,709.86
4. Step 4: Simplify right side
   10,105.80x = 41,077,033.43
5. Step 5: Solve for x
   x = 41,077,033.43/10,105.80
6. Step 6: Final answer
   x = 4,064.70