Finding the Fourth Proportional to 13,048.41, 18,021.77 and 8,592.09

Step by Step Solution

1. Step 1: Write the proportion equation
   13,048.41 : 18,021.77 = 8,592.09 : x
2. Step 2: Convert to fraction form
   13,048.41/18,021.77 = 8,592.09/x
3. Step 3: Cross multiply
   13,048.41x = 18,021.77 × 8,592.09
4. Step 4: Simplify right side
   13,048.41x = 154,844,669.80
5. Step 5: Solve for x
   x = 154,844,669.80/13,048.41
6. Step 6: Final answer
   x = 11,866.94