Finding the Fourth Proportional to 112.50, 167.61 and 100.37

Step by Step Solution

1. Step 1: Write the proportion equation
   112.50 : 167.61 = 100.37 : x
2. Step 2: Convert to fraction form
   112.50/167.61 = 100.37/x
3. Step 3: Cross multiply
   112.50x = 167.61 × 100.37
4. Step 4: Simplify right side
   112.50x = 16,823.02
5. Step 5: Solve for x
   x = 16,823.02/112.50
6. Step 6: Final answer
   x = 149.54