Finding the Fourth Proportional to 109.50, 151.06 and 70.16

Step by Step Solution

1. Step 1: Write the proportion equation
   109.50 : 151.06 = 70.16 : x
2. Step 2: Convert to fraction form
   109.50/151.06 = 70.16/x
3. Step 3: Cross multiply
   109.50x = 151.06 × 70.16
4. Step 4: Simplify right side
   109.50x = 10,598.37
5. Step 5: Solve for x
   x = 10,598.37/109.50
6. Step 6: Final answer
   x = 96.79