Finding the Fourth Proportional to 199,180.55, 298,770.01 and 80,850.89

Step by Step Solution

1. Step 1: Write the proportion equation
   199,180.55 : 298,770.01 = 80,850.89 : x
2. Step 2: Convert to fraction form
   199,180.55/298,770.01 = 80,850.89/x
3. Step 3: Cross multiply
   199,180.55x = 298,770.01 × 80,850.89
4. Step 4: Simplify right side
   199,180.55x = 24,155,819,517.83
5. Step 5: Solve for x
   x = 24,155,819,517.83/199,180.55
6. Step 6: Final answer
   x = 121,276.00