Finding the Fourth Proportional to 7,105.74, 9,806.31 and 3,961.86

Step by Step Solution

1. Step 1: Write the proportion equation
   7,105.74 : 9,806.31 = 3,961.86 : x
2. Step 2: Convert to fraction form
   7,105.74/9,806.31 = 3,961.86/x
3. Step 3: Cross multiply
   7,105.74x = 9,806.31 × 3,961.86
4. Step 4: Simplify right side
   7,105.74x = 38,851,227.34
5. Step 5: Solve for x
   x = 38,851,227.34/7,105.74
6. Step 6: Final answer
   x = 5,467.58