Finding the Fourth Proportional to 12,091.86, 16,676.82 and 8,518.62

Step by Step Solution

1. Step 1: Write the proportion equation
   12,091.86 : 16,676.82 = 8,518.62 : x
2. Step 2: Convert to fraction form
   12,091.86/16,676.82 = 8,518.62/x
3. Step 3: Cross multiply
   12,091.86x = 16,676.82 × 8,518.62
4. Step 4: Simplify right side
   12,091.86x = 142,063,492.39
5. Step 5: Solve for x
   x = 142,063,492.39/12,091.86
6. Step 6: Final answer
   x = 11,748.69