Finding the Fourth Proportional to 123,613.36, 170,589.78 and 69,906.38

Step by Step Solution

1. Step 1: Write the proportion equation
   123,613.36 : 170,589.78 = 69,906.38 : x
2. Step 2: Convert to fraction form
   123,613.36/170,589.78 = 69,906.38/x
3. Step 3: Cross multiply
   123,613.36x = 170,589.78 × 69,906.38
4. Step 4: Simplify right side
   123,613.36x = 11,925,313,131.85
5. Step 5: Solve for x
   x = 11,925,313,131.85/123,613.36
6. Step 6: Final answer
   x = 96,472.69