Finding the Fourth Proportional to 123,919.67, 171,008.54 and 70,204.56

Step by Step Solution

1. Step 1: Write the proportion equation
   123,919.67 : 171,008.54 = 70,204.56 : x
2. Step 2: Convert to fraction form
   123,919.67/171,008.54 = 70,204.56/x
3. Step 3: Cross multiply
   123,919.67x = 171,008.54 × 70,204.56
4. Step 4: Simplify right side
   123,919.67x = 12,005,579,306.94
5. Step 5: Solve for x
   x = 12,005,579,306.94/123,919.67
6. Step 6: Final answer
   x = 96,881.95