Finding the Fourth Proportional to 142,870.89, 197,158.82 and 82,436.79

Step by Step Solution

1. Step 1: Write the proportion equation
   142,870.89 : 197,158.82 = 82,436.79 : x
2. Step 2: Convert to fraction form
   142,870.89/197,158.82 = 82,436.79/x
3. Step 3: Cross multiply
   142,870.89x = 197,158.82 × 82,436.79
4. Step 4: Simplify right side
   142,870.89x = 16,253,139,828.80
5. Step 5: Solve for x
   x = 16,253,139,828.80/142,870.89
6. Step 6: Final answer
   x = 113,761.03