Finding the Fourth Proportional to 142,477.52, 213,743.81 and 42,629.09

Step by Step Solution

1. Step 1: Write the proportion equation
   142,477.52 : 213,743.81 = 42,629.09 : x
2. Step 2: Convert to fraction form
   142,477.52/213,743.81 = 42,629.09/x
3. Step 3: Cross multiply
   142,477.52x = 213,743.81 × 42,629.09
4. Step 4: Simplify right side
   142,477.52x = 9,111,703,151.29
5. Step 5: Solve for x
   x = 9,111,703,151.29/142,477.52
6. Step 6: Final answer
   x = 63,951.87