Finding the Fourth Proportional to 11,809.27, 17,708.59 and 3,486.42

Step by Step Solution

1. Step 1: Write the proportion equation
   11,809.27 : 17,708.59 = 3,486.42 : x
2. Step 2: Convert to fraction form
   11,809.27/17,708.59 = 3,486.42/x
3. Step 3: Cross multiply
   11,809.27x = 17,708.59 × 3,486.42
4. Step 4: Simplify right side
   11,809.27x = 61,739,582.35
5. Step 5: Solve for x
   x = 61,739,582.35/11,809.27
6. Step 6: Final answer
   x = 5,228.06