Finding the Fourth Proportional to 116.24, 174.22 and 99.94

Step by Step Solution

1. Step 1: Write the proportion equation
   116.24 : 174.22 = 99.94 : x
2. Step 2: Convert to fraction form
   116.24/174.22 = 99.94/x
3. Step 3: Cross multiply
   116.24x = 174.22 × 99.94
4. Step 4: Simplify right side
   116.24x = 17,411.55
5. Step 5: Solve for x
   x = 17,411.55/116.24
6. Step 6: Final answer
   x = 149.79