Finding the Fourth Proportional to 11,118.86, 16,680.72 and 3,327.06

Step by Step Solution

1. Step 1: Write the proportion equation
   11,118.86 : 16,680.72 = 3,327.06 : x
2. Step 2: Convert to fraction form
   11,118.86/16,680.72 = 3,327.06/x
3. Step 3: Cross multiply
   11,118.86x = 16,680.72 × 3,327.06
4. Step 4: Simplify right side
   11,118.86x = 55,497,756.28
5. Step 5: Solve for x
   x = 55,497,756.28/11,118.86
6. Step 6: Final answer
   x = 4,991.32