Finding the Fourth Proportional to 8,710.57, 12,020.72 and 4,933.64

Step by Step Solution

1. Step 1: Write the proportion equation
   8,710.57 : 12,020.72 = 4,933.64 : x
2. Step 2: Convert to fraction form
   8,710.57/12,020.72 = 4,933.64/x
3. Step 3: Cross multiply
   8,710.57x = 12,020.72 × 4,933.64
4. Step 4: Simplify right side
   8,710.57x = 59,305,910.40
5. Step 5: Solve for x
   x = 59,305,910.40/8,710.57
6. Step 6: Final answer
   x = 6,808.50