Finding the Fourth Proportional to 8,664.35, 12,007.01 and 8,498.25

Step by Step Solution

1. Step 1: Write the proportion equation
   8,664.35 : 12,007.01 = 8,498.25 : x
2. Step 2: Convert to fraction form
   8,664.35/12,007.01 = 8,498.25/x
3. Step 3: Cross multiply
   8,664.35x = 12,007.01 × 8,498.25
4. Step 4: Simplify right side
   8,664.35x = 102,038,593.98
5. Step 5: Solve for x
   x = 102,038,593.98/8,664.35
6. Step 6: Final answer
   x = 11,776.84