Finding the Fourth Proportional to 11,178.72, 16,768.89 and 3,388.14

Step by Step Solution

1. Step 1: Write the proportion equation
   11,178.72 : 16,768.89 = 3,388.14 : x
2. Step 2: Convert to fraction form
   11,178.72/16,768.89 = 3,388.14/x
3. Step 3: Cross multiply
   11,178.72x = 16,768.89 × 3,388.14
4. Step 4: Simplify right side
   11,178.72x = 56,815,346.96
5. Step 5: Solve for x
   x = 56,815,346.96/11,178.72
6. Step 6: Final answer
   x = 5,082.46