Finding the Fourth Proportional to 8,651.37, 12,975.69 and 5,553.04

Step by Step Solution

1. Step 1: Write the proportion equation
   8,651.37 : 12,975.69 = 5,553.04 : x
2. Step 2: Convert to fraction form
   8,651.37/12,975.69 = 5,553.04/x
3. Step 3: Cross multiply
   8,651.37x = 12,975.69 × 5,553.04
4. Step 4: Simplify right side
   8,651.37x = 72,054,525.60
5. Step 5: Solve for x
   x = 72,054,525.60/8,651.37
6. Step 6: Final answer
   x = 8,328.68