Finding the Fourth Proportional to 7,105.55, 9,805.36 and 3,961.71

Step by Step Solution

1. Step 1: Write the proportion equation
   7,105.55 : 9,805.36 = 3,961.71 : x
2. Step 2: Convert to fraction form
   7,105.55/9,805.36 = 3,961.71/x
3. Step 3: Cross multiply
   7,105.55x = 9,805.36 × 3,961.71
4. Step 4: Simplify right side
   7,105.55x = 38,845,972.96
5. Step 5: Solve for x
   x = 38,845,972.96/7,105.55
6. Step 6: Final answer
   x = 5,466.99