Finding the Fourth Proportional to 142,352.31, 213,525.77 and 42,512.79

Step by Step Solution

1. Step 1: Write the proportion equation
   142,352.31 : 213,525.77 = 42,512.79 : x
2. Step 2: Convert to fraction form
   142,352.31/213,525.77 = 42,512.79/x
3. Step 3: Cross multiply
   142,352.31x = 213,525.77 × 42,512.79
4. Step 4: Simplify right side
   142,352.31x = 9,077,576,007.03
5. Step 5: Solve for x
   x = 9,077,576,007.03/142,352.31
6. Step 6: Final answer
   x = 63,768.38