Finding the Fourth Proportional to 9,128.85, 13,693.23 and 2,203.35

Step by Step Solution

1. Step 1: Write the proportion equation
   9,128.85 : 13,693.23 = 2,203.35 : x
2. Step 2: Convert to fraction form
   9,128.85/13,693.23 = 2,203.35/x
3. Step 3: Cross multiply
   9,128.85x = 13,693.23 × 2,203.35
4. Step 4: Simplify right side
   9,128.85x = 30,170,978.32
5. Step 5: Solve for x
   x = 30,170,978.32/9,128.85
6. Step 6: Final answer
   x = 3,305.01