Finding the Fourth Proportional to 4,743.73, 7,111.18 and 2,109.85

Step by Step Solution

1. Step 1: Write the proportion equation
   4,743.73 : 7,111.18 = 2,109.85 : x
2. Step 2: Convert to fraction form
   4,743.73/7,111.18 = 2,109.85/x
3. Step 3: Cross multiply
   4,743.73x = 7,111.18 × 2,109.85
4. Step 4: Simplify right side
   4,743.73x = 15,003,523.12
5. Step 5: Solve for x
   x = 15,003,523.12/4,743.73
6. Step 6: Final answer
   x = 3,162.81