Finding the Fourth Proportional to 142,162.71, 213,172.76 and 47,359.56

Step by Step Solution

1. Step 1: Write the proportion equation
   142,162.71 : 213,172.76 = 47,359.56 : x
2. Step 2: Convert to fraction form
   142,162.71/213,172.76 = 47,359.56/x
3. Step 3: Cross multiply
   142,162.71x = 213,172.76 × 47,359.56
4. Step 4: Simplify right side
   142,162.71x = 10,095,768,857.78
5. Step 5: Solve for x
   x = 10,095,768,857.78/142,162.71
6. Step 6: Final answer
   x = 71,015.59