Finding the Fourth Proportional to 13,198.01, 19,799.92 and 7,271.83

Step by Step Solution

1. Step 1: Write the proportion equation
   13,198.01 : 19,799.92 = 7,271.83 : x
2. Step 2: Convert to fraction form
   13,198.01/19,799.92 = 7,271.83/x
3. Step 3: Cross multiply
   13,198.01x = 19,799.92 × 7,271.83
4. Step 4: Simplify right side
   13,198.01x = 143,981,721.33
5. Step 5: Solve for x
   x = 143,981,721.33/13,198.01
6. Step 6: Final answer
   x = 10,909.35