Finding the Fourth Proportional to 181,059.30, 250,105.32 and 139,141.80

Step by Step Solution

1. Step 1: Write the proportion equation
   181,059.30 : 250,105.32 = 139,141.80 : x
2. Step 2: Convert to fraction form
   181,059.30/250,105.32 = 139,141.80/x
3. Step 3: Cross multiply
   181,059.30x = 250,105.32 × 139,141.80
4. Step 4: Simplify right side
   181,059.30x = 34,800,104,414.38
5. Step 5: Solve for x
   x = 34,800,104,414.38/181,059.30
6. Step 6: Final answer
   x = 192,202.80