Finding the Fourth Proportional to 11,188.72, 16,783.89 and 3,398.14

Step by Step Solution

1. Step 1: Write the proportion equation
   11,188.72 : 16,783.89 = 3,398.14 : x
2. Step 2: Convert to fraction form
   11,188.72/16,783.89 = 3,398.14/x
3. Step 3: Cross multiply
   11,188.72x = 16,783.89 × 3,398.14
4. Step 4: Simplify right side
   11,188.72x = 57,034,007.96
5. Step 5: Solve for x
   x = 57,034,007.96/11,188.72
6. Step 6: Final answer
   x = 5,097.46