Finding the Fourth Proportional to 123,306.72, 170,162.58 and 69,609.18

Step by Step Solution

1. Step 1: Write the proportion equation
   123,306.72 : 170,162.58 = 69,609.18 : x
2. Step 2: Convert to fraction form
   123,306.72/170,162.58 = 69,609.18/x
3. Step 3: Cross multiply
   123,306.72x = 170,162.58 × 69,609.18
4. Step 4: Simplify right side
   123,306.72x = 11,844,877,660.48
5. Step 5: Solve for x
   x = 11,844,877,660.48/123,306.72
6. Step 6: Final answer
   x = 96,060.28