Finding the Fourth Proportional to 142,034.45, 213,086.78 and 42,194.48

Step by Step Solution

1. Step 1: Write the proportion equation
   142,034.45 : 213,086.78 = 42,194.48 : x
2. Step 2: Convert to fraction form
   142,034.45/213,086.78 = 42,194.48/x
3. Step 3: Cross multiply
   142,034.45x = 213,086.78 × 42,194.48
4. Step 4: Simplify right side
   142,034.45x = 8,991,086,138.39
5. Step 5: Solve for x
   x = 8,991,086,138.39/142,034.45
6. Step 6: Final answer
   x = 63,302.15