Finding the Fourth Proportional to 11,105.82, 16,665.29 and 4,090.76

Step by Step Solution

1. Step 1: Write the proportion equation
   11,105.82 : 16,665.29 = 4,090.76 : x
2. Step 2: Convert to fraction form
   11,105.82/16,665.29 = 4,090.76/x
3. Step 3: Cross multiply
   11,105.82x = 16,665.29 × 4,090.76
4. Step 4: Simplify right side
   11,105.82x = 68,173,701.72
5. Step 5: Solve for x
   x = 68,173,701.72/11,105.82
6. Step 6: Final answer
   x = 6,138.56