Finding the Fourth Proportional to 123,656.69, 170,646.24 and 69,940.56

Step by Step Solution

1. Step 1: Write the proportion equation
   123,656.69 : 170,646.24 = 69,940.56 : x
2. Step 2: Convert to fraction form
   123,656.69/170,646.24 = 69,940.56/x
3. Step 3: Cross multiply
   123,656.69x = 170,646.24 × 69,940.56
4. Step 4: Simplify right side
   123,656.69x = 11,935,093,587.49
5. Step 5: Solve for x
   x = 11,935,093,587.49/123,656.69
6. Step 6: Final answer
   x = 96,517.98