Finding the Fourth Proportional to 123,997.12, 171,112.32 and 67,407.04

Step by Step Solution

1. Step 1: Write the proportion equation
   123,997.12 : 171,112.32 = 67,407.04 : x
2. Step 2: Convert to fraction form
   123,997.12/171,112.32 = 67,407.04/x
3. Step 3: Cross multiply
   123,997.12x = 171,112.32 × 67,407.04
4. Step 4: Simplify right side
   123,997.12x = 11,534,174,998.73
5. Step 5: Solve for x
   x = 11,534,174,998.73/123,997.12
6. Step 6: Final answer
   x = 93,019.70