Finding the Fourth Proportional to 11,081.82, 16,627.59 and 5,236.86

Step by Step Solution

1. Step 1: Write the proportion equation
   11,081.82 : 16,627.59 = 5,236.86 : x
2. Step 2: Convert to fraction form
   11,081.82/16,627.59 = 5,236.86/x
3. Step 3: Cross multiply
   11,081.82x = 16,627.59 × 5,236.86
4. Step 4: Simplify right side
   11,081.82x = 87,076,360.97
5. Step 5: Solve for x
   x = 87,076,360.97/11,081.82
6. Step 6: Final answer
   x = 7,857.59