Finding the Fourth Proportional to 19,443.50, 29,137.91 and 11,111.03

Step by Step Solution

1. Step 1: Write the proportion equation
   19,443.50 : 29,137.91 = 11,111.03 : x
2. Step 2: Convert to fraction form
   19,443.50/29,137.91 = 11,111.03/x
3. Step 3: Cross multiply
   19,443.50x = 29,137.91 × 11,111.03
4. Step 4: Simplify right side
   19,443.50x = 323,752,192.15
5. Step 5: Solve for x
   x = 323,752,192.15/19,443.50
6. Step 6: Final answer
   x = 16,650.92