Finding the Fourth Proportional to 5,239.33, 7,864.15 and 3,848.76

Step by Step Solution

1. Step 1: Write the proportion equation
   5,239.33 : 7,864.15 = 3,848.76 : x
2. Step 2: Convert to fraction form
   5,239.33/7,864.15 = 3,848.76/x
3. Step 3: Cross multiply
   5,239.33x = 7,864.15 × 3,848.76
4. Step 4: Simplify right side
   5,239.33x = 30,267,216.33
5. Step 5: Solve for x
   x = 30,267,216.33/5,239.33
6. Step 6: Final answer
   x = 5,776.93