Finding the Fourth Proportional to 13,843.98, 19,111.55 and 8,541.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,843.98 : 19,111.55 = 8,541.72 : x
2. Step 2: Convert to fraction form
   13,843.98/19,111.55 = 8,541.72/x
3. Step 3: Cross multiply
   13,843.98x = 19,111.55 × 8,541.72
4. Step 4: Simplify right side
   13,843.98x = 163,245,466.16
5. Step 5: Solve for x
   x = 163,245,466.16/13,843.98
6. Step 6: Final answer
   x = 11,791.80