Finding the Fourth Proportional to 142,042.20, 213,096.06 and 42,200.16

Step by Step Solution

1. Step 1: Write the proportion equation
   142,042.20 : 213,096.06 = 42,200.16 : x
2. Step 2: Convert to fraction form
   142,042.20/213,096.06 = 42,200.16/x
3. Step 3: Cross multiply
   142,042.20x = 213,096.06 × 42,200.16
4. Step 4: Simplify right side
   142,042.20x = 8,992,687,827.37
5. Step 5: Solve for x
   x = 8,992,687,827.37/142,042.20
6. Step 6: Final answer
   x = 63,309.97