Finding the Fourth Proportional to 7,105.82, 9,804.89 and 4,121.07

Step by Step Solution

1. Step 1: Write the proportion equation
   7,105.82 : 9,804.89 = 4,121.07 : x
2. Step 2: Convert to fraction form
   7,105.82/9,804.89 = 4,121.07/x
3. Step 3: Cross multiply
   7,105.82x = 9,804.89 × 4,121.07
4. Step 4: Simplify right side
   7,105.82x = 40,406,617.43
5. Step 5: Solve for x
   x = 40,406,617.43/7,105.82
6. Step 6: Final answer
   x = 5,686.42