Finding the Fourth Proportional to 123,471.37, 170,399.06 and 69,736.78

Step by Step Solution

1. Step 1: Write the proportion equation
   123,471.37 : 170,399.06 = 69,736.78 : x
2. Step 2: Convert to fraction form
   123,471.37/170,399.06 = 69,736.78/x
3. Step 3: Cross multiply
   123,471.37x = 170,399.06 × 69,736.78
4. Step 4: Simplify right side
   123,471.37x = 11,883,081,759.43
5. Step 5: Solve for x
   x = 11,883,081,759.43/123,471.37
6. Step 6: Final answer
   x = 96,241.60