Finding the Fourth Proportional to 8,849.38, 12,212.22 and 4,870.78

Step by Step Solution

1. Step 1: Write the proportion equation
   8,849.38 : 12,212.22 = 4,870.78 : x
2. Step 2: Convert to fraction form
   8,849.38/12,212.22 = 4,870.78/x
3. Step 3: Cross multiply
   8,849.38x = 12,212.22 × 4,870.78
4. Step 4: Simplify right side
   8,849.38x = 59,483,036.93
5. Step 5: Solve for x
   x = 59,483,036.93/8,849.38
6. Step 6: Final answer
   x = 6,721.72