Finding the Fourth Proportional to 7,421.82, 10,245.84 and 5,739.42

Step by Step Solution

1. Step 1: Write the proportion equation
   7,421.82 : 10,245.84 = 5,739.42 : x
2. Step 2: Convert to fraction form
   7,421.82/10,245.84 = 5,739.42/x
3. Step 3: Cross multiply
   7,421.82x = 10,245.84 × 5,739.42
4. Step 4: Simplify right side
   7,421.82x = 58,805,179.01
5. Step 5: Solve for x
   x = 58,805,179.01/7,421.82
6. Step 6: Final answer
   x = 7,923.28