Finding the Fourth Proportional to 13,322.82, 18,392.15 and 8,288.68

Step by Step Solution

1. Step 1: Write the proportion equation
   13,322.82 : 18,392.15 = 8,288.68 : x
2. Step 2: Convert to fraction form
   13,322.82/18,392.15 = 8,288.68/x
3. Step 3: Cross multiply
   13,322.82x = 18,392.15 × 8,288.68
4. Step 4: Simplify right side
   13,322.82x = 152,446,645.86
5. Step 5: Solve for x
   x = 152,446,645.86/13,322.82
6. Step 6: Final answer
   x = 11,442.52