Finding the Fourth Proportional to 9,703.46, 14,554.92 and 3,128.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,703.46 : 14,554.92 = 3,128.42 : x
2. Step 2: Convert to fraction form
   9,703.46/14,554.92 = 3,128.42/x
3. Step 3: Cross multiply
   9,703.46x = 14,554.92 × 3,128.42
4. Step 4: Simplify right side
   9,703.46x = 45,533,902.83
5. Step 5: Solve for x
   x = 45,533,902.83/9,703.46
6. Step 6: Final answer
   x = 4,692.54