Finding the Fourth Proportional to 10,081.52, 15,123 and 2,685.96

Step by Step Solution

1. Step 1: Write the proportion equation
   10,081.52 : 15,123 = 2,685.96 : x
2. Step 2: Convert to fraction form
   10,081.52/15,123 = 2,685.96/x
3. Step 3: Cross multiply
   10,081.52x = 15,123 × 2,685.96
4. Step 4: Simplify right side
   10,081.52x = 40,619,773.08
5. Step 5: Solve for x
   x = 40,619,773.08/10,081.52
6. Step 6: Final answer
   x = 4,029.13