Finding the Fourth Proportional to 5,538.83, 7,643.55 and 3,020.89

Step by Step Solution

1. Step 1: Write the proportion equation
   5,538.83 : 7,643.55 = 3,020.89 : x
2. Step 2: Convert to fraction form
   5,538.83/7,643.55 = 3,020.89/x
3. Step 3: Cross multiply
   5,538.83x = 7,643.55 × 3,020.89
4. Step 4: Simplify right side
   5,538.83x = 23,090,350.42
5. Step 5: Solve for x
   x = 23,090,350.42/5,538.83
6. Step 6: Final answer
   x = 4,168.82