Finding the Fourth Proportional to 123,943.21, 171,028.20 and 70,227.25

Step by Step Solution

1. Step 1: Write the proportion equation
   123,943.21 : 171,028.20 = 70,227.25 : x
2. Step 2: Convert to fraction form
   123,943.21/171,028.20 = 70,227.25/x
3. Step 3: Cross multiply
   123,943.21x = 171,028.20 × 70,227.25
4. Step 4: Simplify right side
   123,943.21x = 12,010,840,158.45
5. Step 5: Solve for x
   x = 12,010,840,158.45/123,943.21
6. Step 6: Final answer
   x = 96,906.00