Finding the Fourth Proportional to 142,084.05, 213,161.15 and 42,243.81

Step by Step Solution

1. Step 1: Write the proportion equation
   142,084.05 : 213,161.15 = 42,243.81 : x
2. Step 2: Convert to fraction form
   142,084.05/213,161.15 = 42,243.81/x
3. Step 3: Cross multiply
   142,084.05x = 213,161.15 × 42,243.81
4. Step 4: Simplify right side
   142,084.05x = 9,004,739,119.98
5. Step 5: Solve for x
   x = 9,004,739,119.98/142,084.05
6. Step 6: Final answer
   x = 63,376.14