Finding the Fourth Proportional to 16,075.76, 24,120.51 and 8,290.04

Step by Step Solution

1. Step 1: Write the proportion equation
   16,075.76 : 24,120.51 = 8,290.04 : x
2. Step 2: Convert to fraction form
   16,075.76/24,120.51 = 8,290.04/x
3. Step 3: Cross multiply
   16,075.76x = 24,120.51 × 8,290.04
4. Step 4: Simplify right side
   16,075.76x = 199,959,872.12
5. Step 5: Solve for x
   x = 199,959,872.12/16,075.76
6. Step 6: Final answer
   x = 12,438.60