Finding the Fourth Proportional to 123,934.78, 171,029.56 and 70,230.02

Step by Step Solution

1. Step 1: Write the proportion equation
   123,934.78 : 171,029.56 = 70,230.02 : x
2. Step 2: Convert to fraction form
   123,934.78/171,029.56 = 70,230.02/x
3. Step 3: Cross multiply
   123,934.78x = 171,029.56 × 70,230.02
4. Step 4: Simplify right side
   123,934.78x = 12,011,409,419.39
5. Step 5: Solve for x
   x = 12,011,409,419.39/123,934.78
6. Step 6: Final answer
   x = 96,917.18