Finding the Fourth Proportional to 142,231.16, 213,357.78 and 42,383.72

Step by Step Solution

1. Step 1: Write the proportion equation
   142,231.16 : 213,357.78 = 42,383.72 : x
2. Step 2: Convert to fraction form
   142,231.16/213,357.78 = 42,383.72/x
3. Step 3: Cross multiply
   142,231.16x = 213,357.78 × 42,383.72
4. Step 4: Simplify right side
   142,231.16x = 9,042,896,407.34
5. Step 5: Solve for x
   x = 9,042,896,407.34/142,231.16
6. Step 6: Final answer
   x = 63,578.87