Finding the Fourth Proportional to 28,871.82, 43,304.94 and 19,571.63

Step by Step Solution

1. Step 1: Write the proportion equation
   28,871.82 : 43,304.94 = 19,571.63 : x
2. Step 2: Convert to fraction form
   28,871.82/43,304.94 = 19,571.63/x
3. Step 3: Cross multiply
   28,871.82x = 43,304.94 × 19,571.63
4. Step 4: Simplify right side
   28,871.82x = 847,548,046.33
5. Step 5: Solve for x
   x = 847,548,046.33/28,871.82
6. Step 6: Final answer
   x = 29,355.55