Finding the Fourth Proportional to 123,865.58, 170,928.77 and 70,150.99

Step by Step Solution

1. Step 1: Write the proportion equation
   123,865.58 : 170,928.77 = 70,150.99 : x
2. Step 2: Convert to fraction form
   123,865.58/170,928.77 = 70,150.99/x
3. Step 3: Cross multiply
   123,865.58x = 170,928.77 × 70,150.99
4. Step 4: Simplify right side
   123,865.58x = 11,990,822,297.89
5. Step 5: Solve for x
   x = 11,990,822,297.89/123,865.58
6. Step 6: Final answer
   x = 96,805.12