Finding the Fourth Proportional to 8,849.14, 12,212.16 and 4,870.55

Step by Step Solution

1. Step 1: Write the proportion equation
   8,849.14 : 12,212.16 = 4,870.55 : x
2. Step 2: Convert to fraction form
   8,849.14/12,212.16 = 4,870.55/x
3. Step 3: Cross multiply
   8,849.14x = 12,212.16 × 4,870.55
4. Step 4: Simplify right side
   8,849.14x = 59,479,935.89
5. Step 5: Solve for x
   x = 59,479,935.89/8,849.14
6. Step 6: Final answer
   x = 6,721.55