Finding the Fourth Proportional to 123,941.32, 170,976.06 and 80,945.98

Step by Step Solution

1. Step 1: Write the proportion equation
   123,941.32 : 170,976.06 = 80,945.98 : x
2. Step 2: Convert to fraction form
   123,941.32/170,976.06 = 80,945.98/x
3. Step 3: Cross multiply
   123,941.32x = 170,976.06 × 80,945.98
4. Step 4: Simplify right side
   123,941.32x = 13,839,824,305.80
5. Step 5: Solve for x
   x = 13,839,824,305.80/123,941.32
6. Step 6: Final answer
   x = 111,664.33