Finding the Fourth Proportional to 12,309.77, 18,443.70 and 8,352.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,309.77 : 18,443.70 = 8,352.52 : x
2. Step 2: Convert to fraction form
   12,309.77/18,443.70 = 8,352.52/x
3. Step 3: Cross multiply
   12,309.77x = 18,443.70 × 8,352.52
4. Step 4: Simplify right side
   12,309.77x = 154,051,327.01
5. Step 5: Solve for x
   x = 154,051,327.01/12,309.77
6. Step 6: Final answer
   x = 12,514.56