Finding the Fourth Proportional to 123,815.08, 170,864.34 and 70,105.10

Step by Step Solution

1. Step 1: Write the proportion equation
   123,815.08 : 170,864.34 = 70,105.10 : x
2. Step 2: Convert to fraction form
   123,815.08/170,864.34 = 70,105.10/x
3. Step 3: Cross multiply
   123,815.08x = 170,864.34 × 70,105.10
4. Step 4: Simplify right side
   123,815.08x = 11,978,460,524.92
5. Step 5: Solve for x
   x = 11,978,460,524.92/123,815.08
6. Step 6: Final answer
   x = 96,744.76