Finding the Fourth Proportional to 112.34, 167.38 and 100.22

Step by Step Solution

1. Step 1: Write the proportion equation
   112.34 : 167.38 = 100.22 : x
2. Step 2: Convert to fraction form
   112.34/167.38 = 100.22/x
3. Step 3: Cross multiply
   112.34x = 167.38 × 100.22
4. Step 4: Simplify right side
   112.34x = 16,774.82
5. Step 5: Solve for x
   x = 16,774.82/112.34
6. Step 6: Final answer
   x = 149.32