Finding the Fourth Proportional to 8,698.34, 12,086.98 and 8,608.03

Step by Step Solution

1. Step 1: Write the proportion equation
   8,698.34 : 12,086.98 = 8,608.03 : x
2. Step 2: Convert to fraction form
   8,698.34/12,086.98 = 8,608.03/x
3. Step 3: Cross multiply
   8,698.34x = 12,086.98 × 8,608.03
4. Step 4: Simplify right side
   8,698.34x = 104,045,086.45
5. Step 5: Solve for x
   x = 104,045,086.45/8,698.34
6. Step 6: Final answer
   x = 11,961.49