Finding the Fourth Proportional to 309,554.06, 427,003.52 and 194,650.76

Step by Step Solution

1. Step 1: Write the proportion equation
   309,554.06 : 427,003.52 = 194,650.76 : x
2. Step 2: Convert to fraction form
   309,554.06/427,003.52 = 194,650.76/x
3. Step 3: Cross multiply
   309,554.06x = 427,003.52 × 194,650.76
4. Step 4: Simplify right side
   309,554.06x = 83,116,559,784.93
5. Step 5: Solve for x
   x = 83,116,559,784.93/309,554.06
6. Step 6: Final answer
   x = 268,504.19