Finding the Fourth Proportional to 142,164.72, 213,249.38 and 47,393.62

Step by Step Solution

1. Step 1: Write the proportion equation
   142,164.72 : 213,249.38 = 47,393.62 : x
2. Step 2: Convert to fraction form
   142,164.72/213,249.38 = 47,393.62/x
3. Step 3: Cross multiply
   142,164.72x = 213,249.38 × 47,393.62
4. Step 4: Simplify right side
   142,164.72x = 10,106,659,666.32
5. Step 5: Solve for x
   x = 10,106,659,666.32/142,164.72
6. Step 6: Final answer
   x = 71,091.19