Finding the Fourth Proportional to 142,162.43, 213,172.34 and 47,359.28

Step by Step Solution

1. Step 1: Write the proportion equation
   142,162.43 : 213,172.34 = 47,359.28 : x
2. Step 2: Convert to fraction form
   142,162.43/213,172.34 = 47,359.28/x
3. Step 3: Cross multiply
   142,162.43x = 213,172.34 × 47,359.28
4. Step 4: Simplify right side
   142,162.43x = 10,095,688,767.80
5. Step 5: Solve for x
   x = 10,095,688,767.80/142,162.43
6. Step 6: Final answer
   x = 71,015.17