Finding the Fourth Proportional to 8,849.43, 12,212.12 and 4,870.45

Step by Step Solution

1. Step 1: Write the proportion equation
   8,849.43 : 12,212.12 = 4,870.45 : x
2. Step 2: Convert to fraction form
   8,849.43/12,212.12 = 4,870.45/x
3. Step 3: Cross multiply
   8,849.43x = 12,212.12 × 4,870.45
4. Step 4: Simplify right side
   8,849.43x = 59,478,554.25
5. Step 5: Solve for x
   x = 59,478,554.25/8,849.43
6. Step 6: Final answer
   x = 6,721.18