Finding the Fourth Proportional to 142,443.24, 213,602.58 and 67,584.78

Step by Step Solution

1. Step 1: Write the proportion equation
   142,443.24 : 213,602.58 = 67,584.78 : x
2. Step 2: Convert to fraction form
   142,443.24/213,602.58 = 67,584.78/x
3. Step 3: Cross multiply
   142,443.24x = 213,602.58 × 67,584.78
4. Step 4: Simplify right side
   142,443.24x = 14,436,283,376.73
5. Step 5: Solve for x
   x = 14,436,283,376.73/142,443.24
6. Step 6: Final answer
   x = 101,347.62