Finding the Fourth Proportional to 123,684.78, 170,684.94 and 67,096.56

Step by Step Solution

1. Step 1: Write the proportion equation
   123,684.78 : 170,684.94 = 67,096.56 : x
2. Step 2: Convert to fraction form
   123,684.78/170,684.94 = 67,096.56/x
3. Step 3: Cross multiply
   123,684.78x = 170,684.94 × 67,096.56
4. Step 4: Simplify right side
   123,684.78x = 11,452,372,317.81
5. Step 5: Solve for x
   x = 11,452,372,317.81/123,684.78
6. Step 6: Final answer
   x = 92,593.22