Finding the Fourth Proportional to 142,096.05, 213,177.42 and 42,257.07

Step by Step Solution

1. Step 1: Write the proportion equation
   142,096.05 : 213,177.42 = 42,257.07 : x
2. Step 2: Convert to fraction form
   142,096.05/213,177.42 = 42,257.07/x
3. Step 3: Cross multiply
   142,096.05x = 213,177.42 × 42,257.07
4. Step 4: Simplify right side
   142,096.05x = 9,008,253,159.36
5. Step 5: Solve for x
   x = 9,008,253,159.36/142,096.05
6. Step 6: Final answer
   x = 63,395.52