Finding the Fourth Proportional to 8,443.23, 12,664.54 and 2,599.69

Step by Step Solution

1. Step 1: Write the proportion equation
   8,443.23 : 12,664.54 = 2,599.69 : x
2. Step 2: Convert to fraction form
   8,443.23/12,664.54 = 2,599.69/x
3. Step 3: Cross multiply
   8,443.23x = 12,664.54 × 2,599.69
4. Step 4: Simplify right side
   8,443.23x = 32,923,849.58
5. Step 5: Solve for x
   x = 32,923,849.58/8,443.23
6. Step 6: Final answer
   x = 3,899.44