Finding the Fourth Proportional to 142,076.30, 213,149.52 and 42,236.06

Step by Step Solution

1. Step 1: Write the proportion equation
   142,076.30 : 213,149.52 = 42,236.06 : x
2. Step 2: Convert to fraction form
   142,076.30/213,149.52 = 42,236.06/x
3. Step 3: Cross multiply
   142,076.30x = 213,149.52 × 42,236.06
4. Step 4: Simplify right side
   142,076.30x = 9,002,594,849.94
5. Step 5: Solve for x
   x = 9,002,594,849.94/142,076.30
6. Step 6: Final answer
   x = 63,364.51