Finding the Fourth Proportional to 7,288.05, 10,057.05 and 4,100.79

Step by Step Solution

1. Step 1: Write the proportion equation
   7,288.05 : 10,057.05 = 4,100.79 : x
2. Step 2: Convert to fraction form
   7,288.05/10,057.05 = 4,100.79/x
3. Step 3: Cross multiply
   7,288.05x = 10,057.05 × 4,100.79
4. Step 4: Simplify right side
   7,288.05x = 41,241,850.07
5. Step 5: Solve for x
   x = 41,241,850.07/7,288.05
6. Step 6: Final answer
   x = 5,658.83