Finding the Fourth Proportional to 123,249.72, 184,825.98 and 67,136.16

Step by Step Solution

1. Step 1: Write the proportion equation
   123,249.72 : 184,825.98 = 67,136.16 : x
2. Step 2: Convert to fraction form
   123,249.72/184,825.98 = 67,136.16/x
3. Step 3: Cross multiply
   123,249.72x = 184,825.98 × 67,136.16
4. Step 4: Simplify right side
   123,249.72x = 12,408,506,565.44
5. Step 5: Solve for x
   x = 12,408,506,565.44/123,249.72
6. Step 6: Final answer
   x = 100,677.77