Finding the Fourth Proportional to 9,435.42, 13,020.69 and 5,456.46

Step by Step Solution

1. Step 1: Write the proportion equation
   9,435.42 : 13,020.69 = 5,456.46 : x
2. Step 2: Convert to fraction form
   9,435.42/13,020.69 = 5,456.46/x
3. Step 3: Cross multiply
   9,435.42x = 13,020.69 × 5,456.46
4. Step 4: Simplify right side
   9,435.42x = 71,046,874.16
5. Step 5: Solve for x
   x = 71,046,874.16/9,435.42
6. Step 6: Final answer
   x = 7,529.81