Finding the Fourth Proportional to 111.37, 153.83 and 93.94

Step by Step Solution

1. Step 1: Write the proportion equation
   111.37 : 153.83 = 93.94 : x
2. Step 2: Convert to fraction form
   111.37/153.83 = 93.94/x
3. Step 3: Cross multiply
   111.37x = 153.83 × 93.94
4. Step 4: Simplify right side
   111.37x = 14,449.94
5. Step 5: Solve for x
   x = 14,449.94/111.37
6. Step 6: Final answer
   x = 129.75