Finding the Fourth Proportional to 9,075.78, 13,615.49 and 4,144.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,075.78 : 13,615.49 = 4,144.10 : x
2. Step 2: Convert to fraction form
   9,075.78/13,615.49 = 4,144.10/x
3. Step 3: Cross multiply
   9,075.78x = 13,615.49 × 4,144.10
4. Step 4: Simplify right side
   9,075.78x = 56,423,894.39
5. Step 5: Solve for x
   x = 56,423,894.39/9,075.78
6. Step 6: Final answer
   x = 6,216.97