Finding the Fourth Proportional to 8,647.41, 11,933.61 and 4,870.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,647.41 : 11,933.61 = 4,870.50 : x
2. Step 2: Convert to fraction form
   8,647.41/11,933.61 = 4,870.50/x
3. Step 3: Cross multiply
   8,647.41x = 11,933.61 × 4,870.50
4. Step 4: Simplify right side
   8,647.41x = 58,122,647.51
5. Step 5: Solve for x
   x = 58,122,647.51/8,647.41
6. Step 6: Final answer
   x = 6,721.39