Finding the Fourth Proportional to 309,451.06, 427,182.39 and 194,898.05

Step by Step Solution

1. Step 1: Write the proportion equation
   309,451.06 : 427,182.39 = 194,898.05 : x
2. Step 2: Convert to fraction form
   309,451.06/427,182.39 = 194,898.05/x
3. Step 3: Cross multiply
   309,451.06x = 427,182.39 × 194,898.05
4. Step 4: Simplify right side
   309,451.06x = 83,257,015,142.43
5. Step 5: Solve for x
   x = 83,257,015,142.43/309,451.06
6. Step 6: Final answer
   x = 269,047.44