Finding the Fourth Proportional to 17,091.42, 25,640.73 and 5,404.38

Step by Step Solution

1. Step 1: Write the proportion equation
   17,091.42 : 25,640.73 = 5,404.38 : x
2. Step 2: Convert to fraction form
   17,091.42/25,640.73 = 5,404.38/x
3. Step 3: Cross multiply
   17,091.42x = 25,640.73 × 5,404.38
4. Step 4: Simplify right side
   17,091.42x = 138,572,248.40
5. Step 5: Solve for x
   x = 138,572,248.40/17,091.42
6. Step 6: Final answer
   x = 8,107.71