Finding the Fourth Proportional to 11,710.05, 17,565.98 and 3,390.19

Step by Step Solution

1. Step 1: Write the proportion equation
   11,710.05 : 17,565.98 = 3,390.19 : x
2. Step 2: Convert to fraction form
   11,710.05/17,565.98 = 3,390.19/x
3. Step 3: Cross multiply
   11,710.05x = 17,565.98 × 3,390.19
4. Step 4: Simplify right side
   11,710.05x = 59,551,930.38
5. Step 5: Solve for x
   x = 59,551,930.38/11,710.05
6. Step 6: Final answer
   x = 5,085.54