Finding the Fourth Proportional to 195,126.96, 269,238.72 and 123,456.72

Step by Step Solution

1. Step 1: Write the proportion equation
   195,126.96 : 269,238.72 = 123,456.72 : x
2. Step 2: Convert to fraction form
   195,126.96/269,238.72 = 123,456.72/x
3. Step 3: Cross multiply
   195,126.96x = 269,238.72 × 123,456.72
4. Step 4: Simplify right side
   195,126.96x = 33,239,329,268.20
5. Step 5: Solve for x
   x = 33,239,329,268.20/195,126.96
6. Step 6: Final answer
   x = 170,347.19