Finding the Fourth Proportional to 105.06, 157.52 and 64.50

Step by Step Solution

1. Step 1: Write the proportion equation
   105.06 : 157.52 = 64.50 : x
2. Step 2: Convert to fraction form
   105.06/157.52 = 64.50/x
3. Step 3: Cross multiply
   105.06x = 157.52 × 64.50
4. Step 4: Simplify right side
   105.06x = 10,159.72
5. Step 5: Solve for x
   x = 10,159.72/105.06
6. Step 6: Final answer
   x = 96.70