Finding the Fourth Proportional to 11,085.38, 16,577.55 and 8,276.18

Step by Step Solution

1. Step 1: Write the proportion equation
   11,085.38 : 16,577.55 = 8,276.18 : x
2. Step 2: Convert to fraction form
   11,085.38/16,577.55 = 8,276.18/x
3. Step 3: Cross multiply
   11,085.38x = 16,577.55 × 8,276.18
4. Step 4: Simplify right side
   11,085.38x = 137,198,850.51
5. Step 5: Solve for x
   x = 137,198,850.51/11,085.38
6. Step 6: Final answer
   x = 12,376.56