Finding the Fourth Proportional to 70.55, 105.73 and 30.00

Step by Step Solution

1. Step 1: Write the proportion equation
   70.55 : 105.73 = 30.00 : x
2. Step 2: Convert to fraction form
   70.55/105.73 = 30.00/x
3. Step 3: Cross multiply
   70.55x = 105.73 × 30.00
4. Step 4: Simplify right side
   70.55x = 3,171.41
5. Step 5: Solve for x
   x = 3,171.41/70.55
6. Step 6: Final answer
   x = 44.96