Finding the Fourth Proportional to 5,538.42, 7,643.02 and 3,054.42

Step by Step Solution

1. Step 1: Write the proportion equation
   5,538.42 : 7,643.02 = 3,054.42 : x
2. Step 2: Convert to fraction form
   5,538.42/7,643.02 = 3,054.42/x
3. Step 3: Cross multiply
   5,538.42x = 7,643.02 × 3,054.42
4. Step 4: Simplify right side
   5,538.42x = 23,344,993.15
5. Step 5: Solve for x
   x = 23,344,993.15/5,538.42
6. Step 6: Final answer
   x = 4,215.10