Finding the Fourth Proportional to 123,076.33, 169,902.05 and 72,081.97

Step by Step Solution

1. Step 1: Write the proportion equation
   123,076.33 : 169,902.05 = 72,081.97 : x
2. Step 2: Convert to fraction form
   123,076.33/169,902.05 = 72,081.97/x
3. Step 3: Cross multiply
   123,076.33x = 169,902.05 × 72,081.97
4. Step 4: Simplify right side
   123,076.33x = 12,246,873,685.87
5. Step 5: Solve for x
   x = 12,246,873,685.87/123,076.33
6. Step 6: Final answer
   x = 99,506.33