Finding the Fourth Proportional to 111.13, 153.34 and 67.47

Step by Step Solution

1. Step 1: Write the proportion equation
   111.13 : 153.34 = 67.47 : x
2. Step 2: Convert to fraction form
   111.13/153.34 = 67.47/x
3. Step 3: Cross multiply
   111.13x = 153.34 × 67.47
4. Step 4: Simplify right side
   111.13x = 10,345.51
5. Step 5: Solve for x
   x = 10,345.51/111.13
6. Step 6: Final answer
   x = 93.09