Finding the Fourth Proportional to 142,074.48, 213,146.80 and 42,234.24

Step by Step Solution

1. Step 1: Write the proportion equation
   142,074.48 : 213,146.80 = 42,234.24 : x
2. Step 2: Convert to fraction form
   142,074.48/213,146.80 = 42,234.24/x
3. Step 3: Cross multiply
   142,074.48x = 213,146.80 × 42,234.24
4. Step 4: Simplify right side
   142,074.48x = 9,002,093,106.43
5. Step 5: Solve for x
   x = 9,002,093,106.43/142,074.48
6. Step 6: Final answer
   x = 63,361.79