Finding the Fourth Proportional to 123,942.40, 171,030.82 and 70,235.86

Step by Step Solution

1. Step 1: Write the proportion equation
   123,942.40 : 171,030.82 = 70,235.86 : x
2. Step 2: Convert to fraction form
   123,942.40/171,030.82 = 70,235.86/x
3. Step 3: Cross multiply
   123,942.40x = 171,030.82 × 70,235.86
4. Step 4: Simplify right side
   123,942.40x = 12,012,496,729.21
5. Step 5: Solve for x
   x = 12,012,496,729.21/123,942.40
6. Step 6: Final answer
   x = 96,919.99