Finding the Fourth Proportional to 116.02, 173.94 and 74.89

Step by Step Solution

1. Step 1: Write the proportion equation
   116.02 : 173.94 = 74.89 : x
2. Step 2: Convert to fraction form
   116.02/173.94 = 74.89/x
3. Step 3: Cross multiply
   116.02x = 173.94 × 74.89
4. Step 4: Simplify right side
   116.02x = 13,026.37
5. Step 5: Solve for x
   x = 13,026.37/116.02
6. Step 6: Final answer
   x = 112.28