Finding the Fourth Proportional to 123,123.28, 169,843.56 and 82,357.84

Step by Step Solution

1. Step 1: Write the proportion equation
   123,123.28 : 169,843.56 = 82,357.84 : x
2. Step 2: Convert to fraction form
   123,123.28/169,843.56 = 82,357.84/x
3. Step 3: Cross multiply
   123,123.28x = 169,843.56 × 82,357.84
4. Step 4: Simplify right side
   123,123.28x = 13,987,948,739.51
5. Step 5: Solve for x
   x = 13,987,948,739.51/123,123.28
6. Step 6: Final answer
   x = 113,609.29