Finding the Fourth Proportional to 112.05, 168.18 and 60.69

Step by Step Solution

1. Step 1: Write the proportion equation
   112.05 : 168.18 = 60.69 : x
2. Step 2: Convert to fraction form
   112.05/168.18 = 60.69/x
3. Step 3: Cross multiply
   112.05x = 168.18 × 60.69
4. Step 4: Simplify right side
   112.05x = 10,206.84
5. Step 5: Solve for x
   x = 10,206.84/112.05
6. Step 6: Final answer
   x = 91.09