Finding the Fourth Proportional to 123,912.81, 170,994.11 and 70,196.73

Step by Step Solution

1. Step 1: Write the proportion equation
   123,912.81 : 170,994.11 = 70,196.73 : x
2. Step 2: Convert to fraction form
   123,912.81/170,994.11 = 70,196.73/x
3. Step 3: Cross multiply
   123,912.81x = 170,994.11 × 70,196.73
4. Step 4: Simplify right side
   123,912.81x = 12,003,227,020.28
5. Step 5: Solve for x
   x = 12,003,227,020.28/123,912.81
6. Step 6: Final answer
   x = 96,868.33