Finding the Fourth Proportional to 123,162.72, 184,499.85 and 85,119.87

Step by Step Solution

1. Step 1: Write the proportion equation
   123,162.72 : 184,499.85 = 85,119.87 : x
2. Step 2: Convert to fraction form
   123,162.72/184,499.85 = 85,119.87/x
3. Step 3: Cross multiply
   123,162.72x = 184,499.85 × 85,119.87
4. Step 4: Simplify right side
   123,162.72x = 15,704,603,247.02
5. Step 5: Solve for x
   x = 15,704,603,247.02/123,162.72
6. Step 6: Final answer
   x = 127,511.01