Finding the Fourth Proportional to 123,789.78, 170,833.98 and 70,073.68

Step by Step Solution

1. Step 1: Write the proportion equation
   123,789.78 : 170,833.98 = 70,073.68 : x
2. Step 2: Convert to fraction form
   123,789.78/170,833.98 = 70,073.68/x
3. Step 3: Cross multiply
   123,789.78x = 170,833.98 × 70,073.68
4. Step 4: Simplify right side
   123,789.78x = 11,970,965,647.65
5. Step 5: Solve for x
   x = 11,970,965,647.65/123,789.78
6. Step 6: Final answer
   x = 96,703.99