Finding the Fourth Proportional to 111.69, 154.37 and 92.00

Step by Step Solution

1. Step 1: Write the proportion equation
   111.69 : 154.37 = 92.00 : x
2. Step 2: Convert to fraction form
   111.69/154.37 = 92.00/x
3. Step 3: Cross multiply
   111.69x = 154.37 × 92.00
4. Step 4: Simplify right side
   111.69x = 14,200.81
5. Step 5: Solve for x
   x = 14,200.81/111.69
6. Step 6: Final answer
   x = 127.14