Finding the Fourth Proportional to 33,729.42, 50,567.94 and 21,858.12

Step by Step Solution

1. Step 1: Write the proportion equation
   33,729.42 : 50,567.94 = 21,858.12 : x
2. Step 2: Convert to fraction form
   33,729.42/50,567.94 = 21,858.12/x
3. Step 3: Cross multiply
   33,729.42x = 50,567.94 × 21,858.12
4. Step 4: Simplify right side
   33,729.42x = 1,105,320,100.67
5. Step 5: Solve for x
   x = 1,105,320,100.67/33,729.42
6. Step 6: Final answer
   x = 32,770.21