Finding the Fourth Proportional to 17,799.57, 26,700.77 and 10,404.79

Step by Step Solution

1. Step 1: Write the proportion equation
   17,799.57 : 26,700.77 = 10,404.79 : x
2. Step 2: Convert to fraction form
   17,799.57/26,700.77 = 10,404.79/x
3. Step 3: Cross multiply
   17,799.57x = 26,700.77 × 10,404.79
4. Step 4: Simplify right side
   17,799.57x = 277,815,863.95
5. Step 5: Solve for x
   x = 277,815,863.95/17,799.57
6. Step 6: Final answer
   x = 15,608.01