Finding the Fourth Proportional to 123,087.78, 184,434.80 and 111,277.98

Step by Step Solution

1. Step 1: Write the proportion equation
   123,087.78 : 184,434.80 = 111,277.98 : x
2. Step 2: Convert to fraction form
   123,087.78/184,434.80 = 111,277.98/x
3. Step 3: Cross multiply
   123,087.78x = 184,434.80 × 111,277.98
4. Step 4: Simplify right side
   123,087.78x = 20,523,531,985.70
5. Step 5: Solve for x
   x = 20,523,531,985.70/123,087.78
6. Step 6: Final answer
   x = 166,738.99