Finding the Fourth Proportional to 111.60, 154.01 and 69.58

Step by Step Solution

1. Step 1: Write the proportion equation
   111.60 : 154.01 = 69.58 : x
2. Step 2: Convert to fraction form
   111.60/154.01 = 69.58/x
3. Step 3: Cross multiply
   111.60x = 154.01 × 69.58
4. Step 4: Simplify right side
   111.60x = 10,716.02
5. Step 5: Solve for x
   x = 10,716.02/111.60
6. Step 6: Final answer
   x = 96.02