Finding the Fourth Proportional to 112.37, 168.53 and 61.02

Step by Step Solution

1. Step 1: Write the proportion equation
   112.37 : 168.53 = 61.02 : x
2. Step 2: Convert to fraction form
   112.37/168.53 = 61.02/x
3. Step 3: Cross multiply
   112.37x = 168.53 × 61.02
4. Step 4: Simplify right side
   112.37x = 10,283.40
5. Step 5: Solve for x
   x = 10,283.40/112.37
6. Step 6: Final answer
   x = 91.52