Finding the Fourth Proportional to 142,066.24, 212,949.52 and 47,270.96

Step by Step Solution

1. Step 1: Write the proportion equation
   142,066.24 : 212,949.52 = 47,270.96 : x
2. Step 2: Convert to fraction form
   142,066.24/212,949.52 = 47,270.96/x
3. Step 3: Cross multiply
   142,066.24x = 212,949.52 × 47,270.96
4. Step 4: Simplify right side
   142,066.24x = 10,066,328,241.94
5. Step 5: Solve for x
   x = 10,066,328,241.94/142,066.24
6. Step 6: Final answer
   x = 70,856.58