Finding the Fourth Proportional to 42,399.85, 63,584.91 and 17,091.82

Step by Step Solution

1. Step 1: Write the proportion equation
   42,399.85 : 63,584.91 = 17,091.82 : x
2. Step 2: Convert to fraction form
   42,399.85/63,584.91 = 17,091.82/x
3. Step 3: Cross multiply
   42,399.85x = 63,584.91 × 17,091.82
4. Step 4: Simplify right side
   42,399.85x = 1,086,781,836.44
5. Step 5: Solve for x
   x = 1,086,781,836.44/42,399.85
6. Step 6: Final answer
   x = 25,631.74