Finding the Fourth Proportional to 8,851.73, 12,215.42 and 5,075.12

Step by Step Solution

1. Step 1: Write the proportion equation
   8,851.73 : 12,215.42 = 5,075.12 : x
2. Step 2: Convert to fraction form
   8,851.73/12,215.42 = 5,075.12/x
3. Step 3: Cross multiply
   8,851.73x = 12,215.42 × 5,075.12
4. Step 4: Simplify right side
   8,851.73x = 61,994,635.90
5. Step 5: Solve for x
   x = 61,994,635.90/8,851.73
6. Step 6: Final answer
   x = 7,003.68