Finding the Fourth Proportional to 9,940.46, 13,717.76 and 5,692.28

Step by Step Solution

1. Step 1: Write the proportion equation
   9,940.46 : 13,717.76 = 5,692.28 : x
2. Step 2: Convert to fraction form
   9,940.46/13,717.76 = 5,692.28/x
3. Step 3: Cross multiply
   9,940.46x = 13,717.76 × 5,692.28
4. Step 4: Simplify right side
   9,940.46x = 78,085,330.89
5. Step 5: Solve for x
   x = 78,085,330.89/9,940.46
6. Step 6: Final answer
   x = 7,855.30