Finding the Fourth Proportional to 123,661.96, 170,648.94 and 67,072.12

Step by Step Solution

1. Step 1: Write the proportion equation
   123,661.96 : 170,648.94 = 67,072.12 : x
2. Step 2: Convert to fraction form
   123,661.96/170,648.94 = 67,072.12/x
3. Step 3: Cross multiply
   123,661.96x = 170,648.94 × 67,072.12
4. Step 4: Simplify right side
   123,661.96x = 11,445,786,181.55
5. Step 5: Solve for x
   x = 11,445,786,181.55/123,661.96
6. Step 6: Final answer
   x = 92,557.05