Finding the Fourth Proportional to 10,105.88, 15,159.38 and 3,086.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,105.88 : 15,159.38 = 3,086.12 : x
2. Step 2: Convert to fraction form
   10,105.88/15,159.38 = 3,086.12/x
3. Step 3: Cross multiply
   10,105.88x = 15,159.38 × 3,086.12
4. Step 4: Simplify right side
   10,105.88x = 46,783,574.58
5. Step 5: Solve for x
   x = 46,783,574.58/10,105.88
6. Step 6: Final answer
   x = 4,629.34