Finding the Fourth Proportional to 8,984.88, 13,456.54 and 8,673.48

Step by Step Solution

1. Step 1: Write the proportion equation
   8,984.88 : 13,456.54 = 8,673.48 : x
2. Step 2: Convert to fraction form
   8,984.88/13,456.54 = 8,673.48/x
3. Step 3: Cross multiply
   8,984.88x = 13,456.54 × 8,673.48
4. Step 4: Simplify right side
   8,984.88x = 116,715,106.82
5. Step 5: Solve for x
   x = 116,715,106.82/8,984.88
6. Step 6: Final answer
   x = 12,990.18