Finding the Fourth Proportional to 7,111.83, 9,813.59 and 4,127.09

Step by Step Solution

1. Step 1: Write the proportion equation
   7,111.83 : 9,813.59 = 4,127.09 : x
2. Step 2: Convert to fraction form
   7,111.83/9,813.59 = 4,127.09/x
3. Step 3: Cross multiply
   7,111.83x = 9,813.59 × 4,127.09
4. Step 4: Simplify right side
   7,111.83x = 40,501,514.93
5. Step 5: Solve for x
   x = 40,501,514.93/7,111.83
6. Step 6: Final answer
   x = 5,694.95