Finding the Fourth Proportional to 8,849.10, 12,211.80 and 4,870.46

Step by Step Solution

1. Step 1: Write the proportion equation
   8,849.10 : 12,211.80 = 4,870.46 : x
2. Step 2: Convert to fraction form
   8,849.10/12,211.80 = 4,870.46/x
3. Step 3: Cross multiply
   8,849.10x = 12,211.80 × 4,870.46
4. Step 4: Simplify right side
   8,849.10x = 59,477,083.43
5. Step 5: Solve for x
   x = 59,477,083.43/8,849.10
6. Step 6: Final answer
   x = 6,721.26