Finding the Fourth Proportional to 42,984.27, 64,469.12 and 19,605.24

Step by Step Solution

1. Step 1: Write the proportion equation
   42,984.27 : 64,469.12 = 19,605.24 : x
2. Step 2: Convert to fraction form
   42,984.27/64,469.12 = 19,605.24/x
3. Step 3: Cross multiply
   42,984.27x = 64,469.12 × 19,605.24
4. Step 4: Simplify right side
   42,984.27x = 1,263,932,472.16
5. Step 5: Solve for x
   x = 1,263,932,472.16/42,984.27
6. Step 6: Final answer
   x = 29,404.54