Finding the Fourth Proportional to 123,608.56, 170,580 and 67,019.98

Step by Step Solution

1. Step 1: Write the proportion equation
   123,608.56 : 170,580 = 67,019.98 : x
2. Step 2: Convert to fraction form
   123,608.56/170,580 = 67,019.98/x
3. Step 3: Cross multiply
   123,608.56x = 170,580 × 67,019.98
4. Step 4: Simplify right side
   123,608.56x = 11,432,268,188.40
5. Step 5: Solve for x
   x = 11,432,268,188.40/123,608.56
6. Step 6: Final answer
   x = 92,487.67