Finding the Fourth Proportional to 123,152.95, 184,436.20 and 78,641.83

Step by Step Solution

1. Step 1: Write the proportion equation
   123,152.95 : 184,436.20 = 78,641.83 : x
2. Step 2: Convert to fraction form
   123,152.95/184,436.20 = 78,641.83/x
3. Step 3: Cross multiply
   123,152.95x = 184,436.20 × 78,641.83
4. Step 4: Simplify right side
   123,152.95x = 14,504,400,286.25
5. Step 5: Solve for x
   x = 14,504,400,286.25/123,152.95
6. Step 6: Final answer
   x = 117,775.50