Finding the Fourth Proportional to 9,436.16, 13,021.76 and 5,456.96

Step by Step Solution

1. Step 1: Write the proportion equation
   9,436.16 : 13,021.76 = 5,456.96 : x
2. Step 2: Convert to fraction form
   9,436.16/13,021.76 = 5,456.96/x
3. Step 3: Cross multiply
   9,436.16x = 13,021.76 × 5,456.96
4. Step 4: Simplify right side
   9,436.16x = 71,059,223.45
5. Step 5: Solve for x
   x = 71,059,223.45/9,436.16
6. Step 6: Final answer
   x = 7,530.52