Finding the Fourth Proportional to 8,849.69, 12,212.66 and 4,870.89

Step by Step Solution

1. Step 1: Write the proportion equation
   8,849.69 : 12,212.66 = 4,870.89 : x
2. Step 2: Convert to fraction form
   8,849.69/12,212.66 = 4,870.89/x
3. Step 3: Cross multiply
   8,849.69x = 12,212.66 × 4,870.89
4. Step 4: Simplify right side
   8,849.69x = 59,486,508.25
5. Step 5: Solve for x
   x = 59,486,508.25/8,849.69
6. Step 6: Final answer
   x = 6,721.88