Finding the Fourth Proportional to 9,683.92, 13,362.33 and 5,435.20

Step by Step Solution

1. Step 1: Write the proportion equation
   9,683.92 : 13,362.33 = 5,435.20 : x
2. Step 2: Convert to fraction form
   9,683.92/13,362.33 = 5,435.20/x
3. Step 3: Cross multiply
   9,683.92x = 13,362.33 × 5,435.20
4. Step 4: Simplify right side
   9,683.92x = 72,626,936.02
5. Step 5: Solve for x
   x = 72,626,936.02/9,683.92
6. Step 6: Final answer
   x = 7,499.75