Finding the Fourth Proportional to 102.67, 141.51 and 73.10

Step by Step Solution

1. Step 1: Write the proportion equation
   102.67 : 141.51 = 73.10 : x
2. Step 2: Convert to fraction form
   102.67/141.51 = 73.10/x
3. Step 3: Cross multiply
   102.67x = 141.51 × 73.10
4. Step 4: Simplify right side
   102.67x = 10,345.01
5. Step 5: Solve for x
   x = 10,345.01/102.67
6. Step 6: Final answer
   x = 100.76