Finding the Fourth Proportional to 168.89, 233.28 and 153.50

Step by Step Solution

1. Step 1: Write the proportion equation
   168.89 : 233.28 = 153.50 : x
2. Step 2: Convert to fraction form
   168.89/233.28 = 153.50/x
3. Step 3: Cross multiply
   168.89x = 233.28 × 153.50
4. Step 4: Simplify right side
   168.89x = 35,807.31
5. Step 5: Solve for x
   x = 35,807.31/168.89
6. Step 6: Final answer
   x = 212.02