Finding the Fourth Proportional to 11,725.80, 17,590.43 and 3,404.73

Step by Step Solution

1. Step 1: Write the proportion equation
   11,725.80 : 17,590.43 = 3,404.73 : x
2. Step 2: Convert to fraction form
   11,725.80/17,590.43 = 3,404.73/x
3. Step 3: Cross multiply
   11,725.80x = 17,590.43 × 3,404.73
4. Step 4: Simplify right side
   11,725.80x = 59,890,664.73
5. Step 5: Solve for x
   x = 59,890,664.73/11,725.80
6. Step 6: Final answer
   x = 5,107.60