Finding the Fourth Proportional to 11,665.14, 17,498.58 and 3,345.09

Step by Step Solution

1. Step 1: Write the proportion equation
   11,665.14 : 17,498.58 = 3,345.09 : x
2. Step 2: Convert to fraction form
   11,665.14/17,498.58 = 3,345.09/x
3. Step 3: Cross multiply
   11,665.14x = 17,498.58 × 3,345.09
4. Step 4: Simplify right side
   11,665.14x = 58,534,324.97
5. Step 5: Solve for x
   x = 58,534,324.97/11,665.14
6. Step 6: Final answer
   x = 5,017.88