Finding the Fourth Proportional to 123,408.78, 185,035.41 and 104,695.35

Step by Step Solution

1. Step 1: Write the proportion equation
   123,408.78 : 185,035.41 = 104,695.35 : x
2. Step 2: Convert to fraction form
   123,408.78/185,035.41 = 104,695.35/x
3. Step 3: Cross multiply
   123,408.78x = 185,035.41 × 104,695.35
4. Step 4: Simplify right side
   123,408.78x = 19,372,347,012.34
5. Step 5: Solve for x
   x = 19,372,347,012.34/123,408.78
6. Step 6: Final answer
   x = 156,977.06