Finding the Fourth Proportional to 100.34, 150.69 and 74.83

Step by Step Solution

1. Step 1: Write the proportion equation
   100.34 : 150.69 = 74.83 : x
2. Step 2: Convert to fraction form
   100.34/150.69 = 74.83/x
3. Step 3: Cross multiply
   100.34x = 150.69 × 74.83
4. Step 4: Simplify right side
   100.34x = 11,275.01
5. Step 5: Solve for x
   x = 11,275.01/100.34
6. Step 6: Final answer
   x = 112.37