Finding the Fourth Proportional to 114.86, 172.18 and 63.50

Step by Step Solution

1. Step 1: Write the proportion equation
   114.86 : 172.18 = 63.50 : x
2. Step 2: Convert to fraction form
   114.86/172.18 = 63.50/x
3. Step 3: Cross multiply
   114.86x = 172.18 × 63.50
4. Step 4: Simplify right side
   114.86x = 10,932.41
5. Step 5: Solve for x
   x = 10,932.41/114.86
6. Step 6: Final answer
   x = 95.18