Finding the Fourth Proportional to 9,128.25, 13,692.42 and 2,202.75

Step by Step Solution

1. Step 1: Write the proportion equation
   9,128.25 : 13,692.42 = 2,202.75 : x
2. Step 2: Convert to fraction form
   9,128.25/13,692.42 = 2,202.75/x
3. Step 3: Cross multiply
   9,128.25x = 13,692.42 × 2,202.75
4. Step 4: Simplify right side
   9,128.25x = 30,160,978.16
5. Step 5: Solve for x
   x = 30,160,978.16/9,128.25
6. Step 6: Final answer
   x = 3,304.14