Finding the Fourth Proportional to 111.60, 153.89 and 67.93

Step by Step Solution

1. Step 1: Write the proportion equation
   111.60 : 153.89 = 67.93 : x
2. Step 2: Convert to fraction form
   111.60/153.89 = 67.93/x
3. Step 3: Cross multiply
   111.60x = 153.89 × 67.93
4. Step 4: Simplify right side
   111.60x = 10,453.75
5. Step 5: Solve for x
   x = 10,453.75/111.60
6. Step 6: Final answer
   x = 93.67