Finding the Fourth Proportional to 8,848.89, 12,211.67 and 4,870.09

Step by Step Solution

1. Step 1: Write the proportion equation
   8,848.89 : 12,211.67 = 4,870.09 : x
2. Step 2: Convert to fraction form
   8,848.89/12,211.67 = 4,870.09/x
3. Step 3: Cross multiply
   8,848.89x = 12,211.67 × 4,870.09
4. Step 4: Simplify right side
   8,848.89x = 59,471,907.60
5. Step 5: Solve for x
   x = 59,471,907.60/8,848.89
6. Step 6: Final answer
   x = 6,720.84