Finding the Fourth Proportional to 109.58, 151.18 and 67.56

Step by Step Solution

1. Step 1: Write the proportion equation
   109.58 : 151.18 = 67.56 : x
2. Step 2: Convert to fraction form
   109.58/151.18 = 67.56/x
3. Step 3: Cross multiply
   109.58x = 151.18 × 67.56
4. Step 4: Simplify right side
   109.58x = 10,213.72
5. Step 5: Solve for x
   x = 10,213.72/109.58
6. Step 6: Final answer
   x = 93.21