Finding the Fourth Proportional to 143,005.23, 197,375.94 and 82,585.71

Step by Step Solution

1. Step 1: Write the proportion equation
   143,005.23 : 197,375.94 = 82,585.71 : x
2. Step 2: Convert to fraction form
   143,005.23/197,375.94 = 82,585.71/x
3. Step 3: Cross multiply
   143,005.23x = 197,375.94 × 82,585.71
4. Step 4: Simplify right side
   143,005.23x = 16,300,432,141.82
5. Step 5: Solve for x
   x = 16,300,432,141.82/143,005.23
6. Step 6: Final answer
   x = 113,984.87