Finding the Fourth Proportional to 17,128.73, 25,692.72 and 7,894.73

Step by Step Solution

1. Step 1: Write the proportion equation
   17,128.73 : 25,692.72 = 7,894.73 : x
2. Step 2: Convert to fraction form
   17,128.73/25,692.72 = 7,894.73/x
3. Step 3: Cross multiply
   17,128.73x = 25,692.72 × 7,894.73
4. Step 4: Simplify right side
   17,128.73x = 202,836,958.90
5. Step 5: Solve for x
   x = 202,836,958.90/17,128.73
6. Step 6: Final answer
   x = 11,841.92