Finding the Fourth Proportional to 100.50, 150.53 and 83.22

Step by Step Solution

1. Step 1: Write the proportion equation
   100.50 : 150.53 = 83.22 : x
2. Step 2: Convert to fraction form
   100.50/150.53 = 83.22/x
3. Step 3: Cross multiply
   100.50x = 150.53 × 83.22
4. Step 4: Simplify right side
   100.50x = 12,526.69
5. Step 5: Solve for x
   x = 12,526.69/100.50
6. Step 6: Final answer
   x = 124.64