Finding the Fourth Proportional to 8,804.88, 12,142.98 and 5,447.16

Step by Step Solution

1. Step 1: Write the proportion equation
   8,804.88 : 12,142.98 = 5,447.16 : x
2. Step 2: Convert to fraction form
   8,804.88/12,142.98 = 5,447.16/x
3. Step 3: Cross multiply
   8,804.88x = 12,142.98 × 5,447.16
4. Step 4: Simplify right side
   8,804.88x = 66,144,754.94
5. Step 5: Solve for x
   x = 66,144,754.94/8,804.88
6. Step 6: Final answer
   x = 7,512.28