Finding the Fourth Proportional to 11,210.56, 16,815.82 and 3,419.38

Step by Step Solution

1. Step 1: Write the proportion equation
   11,210.56 : 16,815.82 = 3,419.38 : x
2. Step 2: Convert to fraction form
   11,210.56/16,815.82 = 3,419.38/x
3. Step 3: Cross multiply
   11,210.56x = 16,815.82 × 3,419.38
4. Step 4: Simplify right side
   11,210.56x = 57,499,678.59
5. Step 5: Solve for x
   x = 57,499,678.59/11,210.56
6. Step 6: Final answer
   x = 5,129.06