Finding the Fourth Proportional to 7,105.58, 9,805.98 and 3,961.98

Step by Step Solution

1. Step 1: Write the proportion equation
   7,105.58 : 9,805.98 = 3,961.98 : x
2. Step 2: Convert to fraction form
   7,105.58/9,805.98 = 3,961.98/x
3. Step 3: Cross multiply
   7,105.58x = 9,805.98 × 3,961.98
4. Step 4: Simplify right side
   7,105.58x = 38,851,096.64
5. Step 5: Solve for x
   x = 38,851,096.64/7,105.58
6. Step 6: Final answer
   x = 5,467.69