Finding the Fourth Proportional to 8,647.34, 11,933.16 and 4,870.49

Step by Step Solution

1. Step 1: Write the proportion equation
   8,647.34 : 11,933.16 = 4,870.49 : x
2. Step 2: Convert to fraction form
   8,647.34/11,933.16 = 4,870.49/x
3. Step 3: Cross multiply
   8,647.34x = 11,933.16 × 4,870.49
4. Step 4: Simplify right side
   8,647.34x = 58,120,276.78
5. Step 5: Solve for x
   x = 58,120,276.78/8,647.34
6. Step 6: Final answer
   x = 6,721.18