Finding the Fourth Proportional to 123,081.60, 184,233.60 and 96,643.20

Step by Step Solution

1. Step 1: Write the proportion equation
   123,081.60 : 184,233.60 = 96,643.20 : x
2. Step 2: Convert to fraction form
   123,081.60/184,233.60 = 96,643.20/x
3. Step 3: Cross multiply
   123,081.60x = 184,233.60 × 96,643.20
4. Step 4: Simplify right side
   123,081.60x = 17,804,924,651.52
5. Step 5: Solve for x
   x = 17,804,924,651.52/123,081.60
6. Step 6: Final answer
   x = 144,659.52