Finding the Fourth Proportional to 111.87, 167.86 and 60.46

Step by Step Solution

1. Step 1: Write the proportion equation
   111.87 : 167.86 = 60.46 : x
2. Step 2: Convert to fraction form
   111.87/167.86 = 60.46/x
3. Step 3: Cross multiply
   111.87x = 167.86 × 60.46
4. Step 4: Simplify right side
   111.87x = 10,147.98
5. Step 5: Solve for x
   x = 10,147.98/111.87
6. Step 6: Final answer
   x = 90.71