Finding the Fourth Proportional to 80,300.78, 120,355.50 and 32,913.98

Step by Step Solution

1. Step 1: Write the proportion equation
   80,300.78 : 120,355.50 = 32,913.98 : x
2. Step 2: Convert to fraction form
   80,300.78/120,355.50 = 32,913.98/x
3. Step 3: Cross multiply
   80,300.78x = 120,355.50 × 32,913.98
4. Step 4: Simplify right side
   80,300.78x = 3,961,378,519.89
5. Step 5: Solve for x
   x = 3,961,378,519.89/80,300.78
6. Step 6: Final answer
   x = 49,331.76