Finding the Fourth Proportional to 142,870.14, 197,157.78 and 82,436.04

Step by Step Solution

1. Step 1: Write the proportion equation
   142,870.14 : 197,157.78 = 82,436.04 : x
2. Step 2: Convert to fraction form
   142,870.14/197,157.78 = 82,436.04/x
3. Step 3: Cross multiply
   142,870.14x = 197,157.78 × 82,436.04
4. Step 4: Simplify right side
   142,870.14x = 16,252,906,638.39
5. Step 5: Solve for x
   x = 16,252,906,638.39/142,870.14
6. Step 6: Final answer
   x = 113,760.00