Finding the Fourth Proportional to 42,786.54, 64,173.33 and 16,487.46

Step by Step Solution

1. Step 1: Write the proportion equation
   42,786.54 : 64,173.33 = 16,487.46 : x
2. Step 2: Convert to fraction form
   42,786.54/64,173.33 = 16,487.46/x
3. Step 3: Cross multiply
   42,786.54x = 64,173.33 × 16,487.46
4. Step 4: Simplify right side
   42,786.54x = 1,058,055,211.44
5. Step 5: Solve for x
   x = 1,058,055,211.44/42,786.54
6. Step 6: Final answer
   x = 24,728.69