Finding the Fourth Proportional to 123,086.78, 184,433.30 and 111,276.98

Step by Step Solution

1. Step 1: Write the proportion equation
   123,086.78 : 184,433.30 = 111,276.98 : x
2. Step 2: Convert to fraction form
   123,086.78/184,433.30 = 111,276.98/x
3. Step 3: Cross multiply
   123,086.78x = 184,433.30 × 111,276.98
4. Step 4: Simplify right side
   123,086.78x = 20,523,180,635.43
5. Step 5: Solve for x
   x = 20,523,180,635.43/123,086.78
6. Step 6: Final answer
   x = 166,737.49