Finding the Fourth Proportional to 11,630.27, 17,445.42 and 2,865.20

Step by Step Solution

1. Step 1: Write the proportion equation
   11,630.27 : 17,445.42 = 2,865.20 : x
2. Step 2: Convert to fraction form
   11,630.27/17,445.42 = 2,865.20/x
3. Step 3: Cross multiply
   11,630.27x = 17,445.42 × 2,865.20
4. Step 4: Simplify right side
   11,630.27x = 49,984,530.16
5. Step 5: Solve for x
   x = 49,984,530.16/11,630.27
6. Step 6: Final answer
   x = 4,297.80