Finding the Fourth Proportional to 102.50, 141.33 and 69.69

Step by Step Solution

1. Step 1: Write the proportion equation
   102.50 : 141.33 = 69.69 : x
2. Step 2: Convert to fraction form
   102.50/141.33 = 69.69/x
3. Step 3: Cross multiply
   102.50x = 141.33 × 69.69
4. Step 4: Simplify right side
   102.50x = 9,849.29
5. Step 5: Solve for x
   x = 9,849.29/102.50
6. Step 6: Final answer
   x = 96.10