Finding the Fourth Proportional to 142,066.50, 213,101.37 and 42,224.10

Step by Step Solution

1. Step 1: Write the proportion equation
   142,066.50 : 213,101.37 = 42,224.10 : x
2. Step 2: Convert to fraction form
   142,066.50/213,101.37 = 42,224.10/x
3. Step 3: Cross multiply
   142,066.50x = 213,101.37 × 42,224.10
4. Step 4: Simplify right side
   142,066.50x = 8,998,013,557.02
5. Step 5: Solve for x
   x = 8,998,013,557.02/142,066.50
6. Step 6: Final answer
   x = 63,336.63