Finding the Fourth Proportional to 123,918.30, 171,015.71 and 70,203.75

Step by Step Solution

1. Step 1: Write the proportion equation
   123,918.30 : 171,015.71 = 70,203.75 : x
2. Step 2: Convert to fraction form
   123,918.30/171,015.71 = 70,203.75/x
3. Step 3: Cross multiply
   123,918.30x = 171,015.71 × 70,203.75
4. Step 4: Simplify right side
   123,918.30x = 12,005,944,150.91
5. Step 5: Solve for x
   x = 12,005,944,150.91/123,918.30
6. Step 6: Final answer
   x = 96,885.97