Finding the Fourth Proportional to 230,066.82, 345,200.69 and 80,414.50

Step by Step Solution

1. Step 1: Write the proportion equation
   230,066.82 : 345,200.69 = 80,414.50 : x
2. Step 2: Convert to fraction form
   230,066.82/345,200.69 = 80,414.50/x
3. Step 3: Cross multiply
   230,066.82x = 345,200.69 × 80,414.50
4. Step 4: Simplify right side
   230,066.82x = 27,759,138,757.93
5. Step 5: Solve for x
   x = 27,759,138,757.93/230,066.82
6. Step 6: Final answer
   x = 120,656.85