Finding the Fourth Proportional to 8,315.18, 12,472.72 and 2,075.16

Step by Step Solution

1. Step 1: Write the proportion equation
   8,315.18 : 12,472.72 = 2,075.16 : x
2. Step 2: Convert to fraction form
   8,315.18/12,472.72 = 2,075.16/x
3. Step 3: Cross multiply
   8,315.18x = 12,472.72 × 2,075.16
4. Step 4: Simplify right side
   8,315.18x = 25,882,889.64
5. Step 5: Solve for x
   x = 25,882,889.64/8,315.18
6. Step 6: Final answer
   x = 3,112.73