Finding the Fourth Proportional to 7,075.37, 10,615.82 and 2,145.53

Step by Step Solution

1. Step 1: Write the proportion equation
   7,075.37 : 10,615.82 = 2,145.53 : x
2. Step 2: Convert to fraction form
   7,075.37/10,615.82 = 2,145.53/x
3. Step 3: Cross multiply
   7,075.37x = 10,615.82 × 2,145.53
4. Step 4: Simplify right side
   7,075.37x = 22,776,496.48
5. Step 5: Solve for x
   x = 22,776,496.48/7,075.37
6. Step 6: Final answer
   x = 3,219.13