Finding the Fourth Proportional to 42,745.72, 64,117.88 and 16,456.16

Step by Step Solution

1. Step 1: Write the proportion equation
   42,745.72 : 64,117.88 = 16,456.16 : x
2. Step 2: Convert to fraction form
   42,745.72/64,117.88 = 16,456.16/x
3. Step 3: Cross multiply
   42,745.72x = 64,117.88 × 16,456.16
4. Step 4: Simplify right side
   42,745.72x = 1,055,134,092.14
5. Step 5: Solve for x
   x = 1,055,134,092.14/42,745.72
6. Step 6: Final answer
   x = 24,683.97