Finding the Fourth Proportional to 10,105.45, 15,156.13 and 2,708.18

Step by Step Solution

1. Step 1: Write the proportion equation
   10,105.45 : 15,156.13 = 2,708.18 : x
2. Step 2: Convert to fraction form
   10,105.45/15,156.13 = 2,708.18/x
3. Step 3: Cross multiply
   10,105.45x = 15,156.13 × 2,708.18
4. Step 4: Simplify right side
   10,105.45x = 41,045,528.14
5. Step 5: Solve for x
   x = 41,045,528.14/10,105.45
6. Step 6: Final answer
   x = 4,061.72