Finding the Fourth Proportional to 123,923.80, 171,029.58 and 73,623

Step by Step Solution

1. Step 1: Write the proportion equation
   123,923.80 : 171,029.58 = 73,623 : x
2. Step 2: Convert to fraction form
   123,923.80/171,029.58 = 73,623/x
3. Step 3: Cross multiply
   123,923.80x = 171,029.58 × 73,623
4. Step 4: Simplify right side
   123,923.80x = 12,591,710,768.34
5. Step 5: Solve for x
   x = 12,591,710,768.34/123,923.80
6. Step 6: Final answer
   x = 101,608.49