Finding the Fourth Proportional to 309,613.98, 427,085.84 and 194,710.37

Step by Step Solution

1. Step 1: Write the proportion equation
   309,613.98 : 427,085.84 = 194,710.37 : x
2. Step 2: Convert to fraction form
   309,613.98/427,085.84 = 194,710.37/x
3. Step 3: Cross multiply
   309,613.98x = 427,085.84 × 194,710.37
4. Step 4: Simplify right side
   309,613.98x = 83,158,038,819.18
5. Step 5: Solve for x
   x = 83,158,038,819.18/309,613.98
6. Step 6: Final answer
   x = 268,586.19