Finding the Fourth Proportional to 72,241.41, 108,383.94 and 21,642.09

Step by Step Solution

1. Step 1: Write the proportion equation
   72,241.41 : 108,383.94 = 21,642.09 : x
2. Step 2: Convert to fraction form
   72,241.41/108,383.94 = 21,642.09/x
3. Step 3: Cross multiply
   72,241.41x = 108,383.94 × 21,642.09
4. Step 4: Simplify right side
   72,241.41x = 2,345,654,577.59
5. Step 5: Solve for x
   x = 2,345,654,577.59/72,241.41
6. Step 6: Final answer
   x = 32,469.67