Finding the Fourth Proportional to 7,081.43, 10,617.51 and 3,961.78

Step by Step Solution

1. Step 1: Write the proportion equation
   7,081.43 : 10,617.51 = 3,961.78 : x
2. Step 2: Convert to fraction form
   7,081.43/10,617.51 = 3,961.78/x
3. Step 3: Cross multiply
   7,081.43x = 10,617.51 × 3,961.78
4. Step 4: Simplify right side
   7,081.43x = 42,064,227.08
5. Step 5: Solve for x
   x = 42,064,227.08/7,081.43
6. Step 6: Final answer
   x = 5,940.08