Finding the Fourth Proportional to 111.29, 153.41 and 93.83

Step by Step Solution

1. Step 1: Write the proportion equation
   111.29 : 153.41 = 93.83 : x
2. Step 2: Convert to fraction form
   111.29/153.41 = 93.83/x
3. Step 3: Cross multiply
   111.29x = 153.41 × 93.83
4. Step 4: Simplify right side
   111.29x = 14,393.22
5. Step 5: Solve for x
   x = 14,393.22/111.29
6. Step 6: Final answer
   x = 129.34