Finding the Fourth Proportional to 9,628.02, 13,285.17 and 5,436.18

Step by Step Solution

1. Step 1: Write the proportion equation
   9,628.02 : 13,285.17 = 5,436.18 : x
2. Step 2: Convert to fraction form
   9,628.02/13,285.17 = 5,436.18/x
3. Step 3: Cross multiply
   9,628.02x = 13,285.17 × 5,436.18
4. Step 4: Simplify right side
   9,628.02x = 72,220,575.45
5. Step 5: Solve for x
   x = 72,220,575.45/9,628.02
6. Step 6: Final answer
   x = 7,501.08