Finding the Fourth Proportional to 30,335.34, 41,836.59 and 19,721.10

Step by Step Solution

1. Step 1: Write the proportion equation
   30,335.34 : 41,836.59 = 19,721.10 : x
2. Step 2: Convert to fraction form
   30,335.34/41,836.59 = 19,721.10/x
3. Step 3: Cross multiply
   30,335.34x = 41,836.59 × 19,721.10
4. Step 4: Simplify right side
   30,335.34x = 825,063,575.05
5. Step 5: Solve for x
   x = 825,063,575.05/30,335.34
6. Step 6: Final answer
   x = 27,198.10