Finding the Fourth Proportional to 194.86, 268.90 and 111.98

Step by Step Solution

1. Step 1: Write the proportion equation
   194.86 : 268.90 = 111.98 : x
2. Step 2: Convert to fraction form
   194.86/268.90 = 111.98/x
3. Step 3: Cross multiply
   194.86x = 268.90 × 111.98
4. Step 4: Simplify right side
   194.86x = 30,111.42
5. Step 5: Solve for x
   x = 30,111.42/194.86
6. Step 6: Final answer
   x = 154.53