Finding the Fourth Proportional to 309,708.69, 427,581.23 and 195,085.59

Step by Step Solution

1. Step 1: Write the proportion equation
   309,708.69 : 427,581.23 = 195,085.59 : x
2. Step 2: Convert to fraction form
   309,708.69/427,581.23 = 195,085.59/x
3. Step 3: Cross multiply
   309,708.69x = 427,581.23 × 195,085.59
4. Step 4: Simplify right side
   309,708.69x = 83,414,937,435.50
5. Step 5: Solve for x
   x = 83,414,937,435.50/309,708.69
6. Step 6: Final answer
   x = 269,333.53