Finding the Fourth Proportional to 123,909.35, 171,003.35 and 70,194.80

Step by Step Solution

1. Step 1: Write the proportion equation
   123,909.35 : 171,003.35 = 70,194.80 : x
2. Step 2: Convert to fraction form
   123,909.35/171,003.35 = 70,194.80/x
3. Step 3: Cross multiply
   123,909.35x = 171,003.35 × 70,194.80
4. Step 4: Simplify right side
   123,909.35x = 12,003,546,555.58
5. Step 5: Solve for x
   x = 12,003,546,555.58/123,909.35
6. Step 6: Final answer
   x = 96,873.62