Finding the Fourth Proportional to 142,066.05, 213,132.42 and 42,227.07

Step by Step Solution

1. Step 1: Write the proportion equation
   142,066.05 : 213,132.42 = 42,227.07 : x
2. Step 2: Convert to fraction form
   142,066.05/213,132.42 = 42,227.07/x
3. Step 3: Cross multiply
   142,066.05x = 213,132.42 × 42,227.07
4. Step 4: Simplify right side
   142,066.05x = 8,999,957,618.61
5. Step 5: Solve for x
   x = 8,999,957,618.61/142,066.05
6. Step 6: Final answer
   x = 63,350.52