Finding the Fourth Proportional to 111.77, 154.25 and 70.32

Step by Step Solution

1. Step 1: Write the proportion equation
   111.77 : 154.25 = 70.32 : x
2. Step 2: Convert to fraction form
   111.77/154.25 = 70.32/x
3. Step 3: Cross multiply
   111.77x = 154.25 × 70.32
4. Step 4: Simplify right side
   111.77x = 10,846.51
5. Step 5: Solve for x
   x = 10,846.51/111.77
6. Step 6: Final answer
   x = 97.05