Finding the Fourth Proportional to 123,344.16, 170,288.28 and 80,976.96

Step by Step Solution

1. Step 1: Write the proportion equation
   123,344.16 : 170,288.28 = 80,976.96 : x
2. Step 2: Convert to fraction form
   123,344.16/170,288.28 = 80,976.96/x
3. Step 3: Cross multiply
   123,344.16x = 170,288.28 × 80,976.96
4. Step 4: Simplify right side
   123,344.16x = 13,789,427,238.03
5. Step 5: Solve for x
   x = 13,789,427,238.03/123,344.16
6. Step 6: Final answer
   x = 111,796.35