Finding the Fourth Proportional to 100.72, 150.94 and 74.83

Step by Step Solution

1. Step 1: Write the proportion equation
   100.72 : 150.94 = 74.83 : x
2. Step 2: Convert to fraction form
   100.72/150.94 = 74.83/x
3. Step 3: Cross multiply
   100.72x = 150.94 × 74.83
4. Step 4: Simplify right side
   100.72x = 11,294.84
5. Step 5: Solve for x
   x = 11,294.84/100.72
6. Step 6: Final answer
   x = 112.14