Finding the Fourth Proportional to 123,674.50, 170,670.90 and 67,086.10

Step by Step Solution

1. Step 1: Write the proportion equation
   123,674.50 : 170,670.90 = 67,086.10 : x
2. Step 2: Convert to fraction form
   123,674.50/170,670.90 = 67,086.10/x
3. Step 3: Cross multiply
   123,674.50x = 170,670.90 × 67,086.10
4. Step 4: Simplify right side
   123,674.50x = 11,449,645,064.49
5. Step 5: Solve for x
   x = 11,449,645,064.49/123,674.50
6. Step 6: Final answer
   x = 92,578.87