Finding the Fourth Proportional to 123,556.17, 170,505.67 and 69,839.30

Step by Step Solution

1. Step 1: Write the proportion equation
   123,556.17 : 170,505.67 = 69,839.30 : x
2. Step 2: Convert to fraction form
   123,556.17/170,505.67 = 69,839.30/x
3. Step 3: Cross multiply
   123,556.17x = 170,505.67 × 69,839.30
4. Step 4: Simplify right side
   123,556.17x = 11,907,996,638.83
5. Step 5: Solve for x
   x = 11,907,996,638.83/123,556.17
6. Step 6: Final answer
   x = 96,377.19