Finding the Fourth Proportional to 116.55, 174.17 and 100.29

Step by Step Solution

1. Step 1: Write the proportion equation
   116.55 : 174.17 = 100.29 : x
2. Step 2: Convert to fraction form
   116.55/174.17 = 100.29/x
3. Step 3: Cross multiply
   116.55x = 174.17 × 100.29
4. Step 4: Simplify right side
   116.55x = 17,467.51
5. Step 5: Solve for x
   x = 17,467.51/116.55
6. Step 6: Final answer
   x = 149.87