Finding the Fourth Proportional to 123,608.72, 170,578.50 and 67,019.96

Step by Step Solution

1. Step 1: Write the proportion equation
   123,608.72 : 170,578.50 = 67,019.96 : x
2. Step 2: Convert to fraction form
   123,608.72/170,578.50 = 67,019.96/x
3. Step 3: Cross multiply
   123,608.72x = 170,578.50 × 67,019.96
4. Step 4: Simplify right side
   123,608.72x = 11,432,164,246.86
5. Step 5: Solve for x
   x = 11,432,164,246.86/123,608.72
6. Step 6: Final answer
   x = 92,486.71