Finding the Fourth Proportional to 5,443.02, 8,161.28 and 3,690.18

Step by Step Solution

1. Step 1: Write the proportion equation
   5,443.02 : 8,161.28 = 3,690.18 : x
2. Step 2: Convert to fraction form
   5,443.02/8,161.28 = 3,690.18/x
3. Step 3: Cross multiply
   5,443.02x = 8,161.28 × 3,690.18
4. Step 4: Simplify right side
   5,443.02x = 30,116,592.23
5. Step 5: Solve for x
   x = 30,116,592.23/5,443.02
6. Step 6: Final answer
   x = 5,533.07