Finding the Fourth Proportional to 109.01, 150.48 and 72.22

Step by Step Solution

1. Step 1: Write the proportion equation
   109.01 : 150.48 = 72.22 : x
2. Step 2: Convert to fraction form
   109.01/150.48 = 72.22/x
3. Step 3: Cross multiply
   109.01x = 150.48 × 72.22
4. Step 4: Simplify right side
   109.01x = 10,867.99
5. Step 5: Solve for x
   x = 10,867.99/109.01
6. Step 6: Final answer
   x = 99.69