Finding the Fourth Proportional to 102.01, 152.81 and 67.69

Step by Step Solution

1. Step 1: Write the proportion equation
   102.01 : 152.81 = 67.69 : x
2. Step 2: Convert to fraction form
   102.01/152.81 = 67.69/x
3. Step 3: Cross multiply
   102.01x = 152.81 × 67.69
4. Step 4: Simplify right side
   102.01x = 10,343.71
5. Step 5: Solve for x
   x = 10,343.71/102.01
6. Step 6: Final answer
   x = 101.40