Finding the Fourth Proportional to 7,105.42, 10,658.67 and 1,911.22

Step by Step Solution

1. Step 1: Write the proportion equation
   7,105.42 : 10,658.67 = 1,911.22 : x
2. Step 2: Convert to fraction form
   7,105.42/10,658.67 = 1,911.22/x
3. Step 3: Cross multiply
   7,105.42x = 10,658.67 × 1,911.22
4. Step 4: Simplify right side
   7,105.42x = 20,371,063.28
5. Step 5: Solve for x
   x = 20,371,063.28/7,105.42
6. Step 6: Final answer
   x = 2,866.98