Finding the Fourth Proportional to 28,227.98, 42,328.56 and 16,385.41

Step by Step Solution

1. Step 1: Write the proportion equation
   28,227.98 : 42,328.56 = 16,385.41 : x
2. Step 2: Convert to fraction form
   28,227.98/42,328.56 = 16,385.41/x
3. Step 3: Cross multiply
   28,227.98x = 42,328.56 × 16,385.41
4. Step 4: Simplify right side
   28,227.98x = 693,570,704.49
5. Step 5: Solve for x
   x = 693,570,704.49/28,227.98
6. Step 6: Final answer
   x = 24,570.33