Finding the Fourth Proportional to 4,864.82, 6,710.73 and 3,186.50

Step by Step Solution

1. Step 1: Write the proportion equation
   4,864.82 : 6,710.73 = 3,186.50 : x
2. Step 2: Convert to fraction form
   4,864.82/6,710.73 = 3,186.50/x
3. Step 3: Cross multiply
   4,864.82x = 6,710.73 × 3,186.50
4. Step 4: Simplify right side
   4,864.82x = 21,383,741.15
5. Step 5: Solve for x
   x = 21,383,741.15/4,864.82
6. Step 6: Final answer
   x = 4,395.59