Finding the Fourth Proportional to 5,870.11, 8,104.50 and 5,239.54

Step by Step Solution

1. Step 1: Write the proportion equation
   5,870.11 : 8,104.50 = 5,239.54 : x
2. Step 2: Convert to fraction form
   5,870.11/8,104.50 = 5,239.54/x
3. Step 3: Cross multiply
   5,870.11x = 8,104.50 × 5,239.54
4. Step 4: Simplify right side
   5,870.11x = 42,463,851.93
5. Step 5: Solve for x
   x = 42,463,851.93/5,870.11
6. Step 6: Final answer
   x = 7,233.91