Finding the Fourth Proportional to 123,383.89, 170,268.43 and 69,665.69

Step by Step Solution

1. Step 1: Write the proportion equation
   123,383.89 : 170,268.43 = 69,665.69 : x
2. Step 2: Convert to fraction form
   123,383.89/170,268.43 = 69,665.69/x
3. Step 3: Cross multiply
   123,383.89x = 170,268.43 × 69,665.69
4. Step 4: Simplify right side
   123,383.89x = 11,861,867,661.17
5. Step 5: Solve for x
   x = 11,861,867,661.17/123,383.89
6. Step 6: Final answer
   x = 96,137.90