Finding the Fourth Proportional to 142,105.66, 213,112.32 and 47,310.37

Step by Step Solution

1. Step 1: Write the proportion equation
   142,105.66 : 213,112.32 = 47,310.37 : x
2. Step 2: Convert to fraction form
   142,105.66/213,112.32 = 47,310.37/x
3. Step 3: Cross multiply
   142,105.66x = 213,112.32 × 47,310.37
4. Step 4: Simplify right side
   142,105.66x = 10,082,422,710.76
5. Step 5: Solve for x
   x = 10,082,422,710.76/142,105.66
6. Step 6: Final answer
   x = 70,950.18