Finding the Fourth Proportional to 10,040.72, 15,061.18 and 2,646.24

Step by Step Solution

1. Step 1: Write the proportion equation
   10,040.72 : 15,061.18 = 2,646.24 : x
2. Step 2: Convert to fraction form
   10,040.72/15,061.18 = 2,646.24/x
3. Step 3: Cross multiply
   10,040.72x = 15,061.18 × 2,646.24
4. Step 4: Simplify right side
   10,040.72x = 39,855,496.96
5. Step 5: Solve for x
   x = 39,855,496.96/10,040.72
6. Step 6: Final answer
   x = 3,969.39