Finding the Fourth Proportional to 142,162.93, 213,173.09 and 47,359.78

Step by Step Solution

1. Step 1: Write the proportion equation
   142,162.93 : 213,173.09 = 47,359.78 : x
2. Step 2: Convert to fraction form
   142,162.93/213,173.09 = 47,359.78/x
3. Step 3: Cross multiply
   142,162.93x = 213,173.09 × 47,359.78
4. Step 4: Simplify right side
   142,162.93x = 10,095,830,644.32
5. Step 5: Solve for x
   x = 10,095,830,644.32/142,162.93
6. Step 6: Final answer
   x = 71,015.92