Finding the Fourth Proportional to 8,075.49, 12,105.90 and 2,880.15

Step by Step Solution

1. Step 1: Write the proportion equation
   8,075.49 : 12,105.90 = 2,880.15 : x
2. Step 2: Convert to fraction form
   8,075.49/12,105.90 = 2,880.15/x
3. Step 3: Cross multiply
   8,075.49x = 12,105.90 × 2,880.15
4. Step 4: Simplify right side
   8,075.49x = 34,866,807.89
5. Step 5: Solve for x
   x = 34,866,807.89/8,075.49
6. Step 6: Final answer
   x = 4,317.61