Finding the Fourth Proportional to 8,633.88, 12,942.42 and 5,504.12

Step by Step Solution

1. Step 1: Write the proportion equation
   8,633.88 : 12,942.42 = 5,504.12 : x
2. Step 2: Convert to fraction form
   8,633.88/12,942.42 = 5,504.12/x
3. Step 3: Cross multiply
   8,633.88x = 12,942.42 × 5,504.12
4. Step 4: Simplify right side
   8,633.88x = 71,236,632.77
5. Step 5: Solve for x
   x = 71,236,632.77/8,633.88
6. Step 6: Final answer
   x = 8,250.82