Finding the Fourth Proportional to 123,997.50, 171,116.15 and 67,408.47

Step by Step Solution

1. Step 1: Write the proportion equation
   123,997.50 : 171,116.15 = 67,408.47 : x
2. Step 2: Convert to fraction form
   123,997.50/171,116.15 = 67,408.47/x
3. Step 3: Cross multiply
   123,997.50x = 171,116.15 × 67,408.47
4. Step 4: Simplify right side
   123,997.50x = 11,534,677,526.75
5. Step 5: Solve for x
   x = 11,534,677,526.75/123,997.50
6. Step 6: Final answer
   x = 93,023.47