Finding the Fourth Proportional to 123,964.72, 171,070.65 and 70,259.90

Step by Step Solution

1. Step 1: Write the proportion equation
   123,964.72 : 171,070.65 = 70,259.90 : x
2. Step 2: Convert to fraction form
   123,964.72/171,070.65 = 70,259.90/x
3. Step 3: Cross multiply
   123,964.72x = 171,070.65 × 70,259.90
4. Step 4: Simplify right side
   123,964.72x = 12,019,405,906.58
5. Step 5: Solve for x
   x = 12,019,405,906.58/123,964.72
6. Step 6: Final answer
   x = 96,958.28