Finding the Fourth Proportional to 10,081.10, 15,123.24 and 2,686.15

Step by Step Solution

1. Step 1: Write the proportion equation
   10,081.10 : 15,123.24 = 2,686.15 : x
2. Step 2: Convert to fraction form
   10,081.10/15,123.24 = 2,686.15/x
3. Step 3: Cross multiply
   10,081.10x = 15,123.24 × 2,686.15
4. Step 4: Simplify right side
   10,081.10x = 40,623,291.13
5. Step 5: Solve for x
   x = 40,623,291.13/10,081.10
6. Step 6: Final answer
   x = 4,029.65