Finding the Fourth Proportional to 7,075.48, 10,613.18 and 2,145.10

Step by Step Solution

1. Step 1: Write the proportion equation
   7,075.48 : 10,613.18 = 2,145.10 : x
2. Step 2: Convert to fraction form
   7,075.48/10,613.18 = 2,145.10/x
3. Step 3: Cross multiply
   7,075.48x = 10,613.18 × 2,145.10
4. Step 4: Simplify right side
   7,075.48x = 22,766,332.42
5. Step 5: Solve for x
   x = 22,766,332.42/7,075.48
6. Step 6: Final answer
   x = 3,217.64