Finding the Fourth Proportional to 9,424.80, 14,128.20 and 3,500.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,424.80 : 14,128.20 = 3,500.10 : x
2. Step 2: Convert to fraction form
   9,424.80/14,128.20 = 3,500.10/x
3. Step 3: Cross multiply
   9,424.80x = 14,128.20 × 3,500.10
4. Step 4: Simplify right side
   9,424.80x = 49,450,112.82
5. Step 5: Solve for x
   x = 49,450,112.82/9,424.80
6. Step 6: Final answer
   x = 5,246.81