Finding the Fourth Proportional to 111.31, 153.52 and 73.96

Step by Step Solution

1. Step 1: Write the proportion equation
   111.31 : 153.52 = 73.96 : x
2. Step 2: Convert to fraction form
   111.31/153.52 = 73.96/x
3. Step 3: Cross multiply
   111.31x = 153.52 × 73.96
4. Step 4: Simplify right side
   111.31x = 11,354.84
5. Step 5: Solve for x
   x = 11,354.84/111.31
6. Step 6: Final answer
   x = 102.01