Finding the Fourth Proportional to 21,865.86, 30,185.16 and 17,092.74

Step by Step Solution

1. Step 1: Write the proportion equation
   21,865.86 : 30,185.16 = 17,092.74 : x
2. Step 2: Convert to fraction form
   21,865.86/30,185.16 = 17,092.74/x
3. Step 3: Cross multiply
   21,865.86x = 30,185.16 × 17,092.74
4. Step 4: Simplify right side
   21,865.86x = 515,947,091.74
5. Step 5: Solve for x
   x = 515,947,091.74/21,865.86
6. Step 6: Final answer
   x = 23,596.01