Finding the Fourth Proportional to 123,912.94, 170,994.28 and 70,196.86

Step by Step Solution

1. Step 1: Write the proportion equation
   123,912.94 : 170,994.28 = 70,196.86 : x
2. Step 2: Convert to fraction form
   123,912.94/170,994.28 = 70,196.86/x
3. Step 3: Cross multiply
   123,912.94x = 170,994.28 × 70,196.86
4. Step 4: Simplify right side
   123,912.94x = 12,003,260,503.50
5. Step 5: Solve for x
   x = 12,003,260,503.50/123,912.94
6. Step 6: Final answer
   x = 96,868.50