Finding the Fourth Proportional to 123,607.72, 170,577.12 and 67,018.96

Step by Step Solution

1. Step 1: Write the proportion equation
   123,607.72 : 170,577.12 = 67,018.96 : x
2. Step 2: Convert to fraction form
   123,607.72/170,577.12 = 67,018.96/x
3. Step 3: Cross multiply
   123,607.72x = 170,577.12 × 67,018.96
4. Step 4: Simplify right side
   123,607.72x = 11,431,901,182.20
5. Step 5: Solve for x
   x = 11,431,901,182.20/123,607.72
6. Step 6: Final answer
   x = 92,485.33