Finding the Fourth Proportional to 8,664.72, 13,010.04 and 8,362.32

Step by Step Solution

1. Step 1: Write the proportion equation
   8,664.72 : 13,010.04 = 8,362.32 : x
2. Step 2: Convert to fraction form
   8,664.72/13,010.04 = 8,362.32/x
3. Step 3: Cross multiply
   8,664.72x = 13,010.04 × 8,362.32
4. Step 4: Simplify right side
   8,664.72x = 108,794,117.69
5. Step 5: Solve for x
   x = 108,794,117.69/8,664.72
6. Step 6: Final answer
   x = 12,555.99