Finding the Fourth Proportional to 80,463.78, 120,672.18 and 30,507.84

Step by Step Solution

1. Step 1: Write the proportion equation
   80,463.78 : 120,672.18 = 30,507.84 : x
2. Step 2: Convert to fraction form
   80,463.78/120,672.18 = 30,507.84/x
3. Step 3: Cross multiply
   80,463.78x = 120,672.18 × 30,507.84
4. Step 4: Simplify right side
   80,463.78x = 3,681,447,559.89
5. Step 5: Solve for x
   x = 3,681,447,559.89/80,463.78
6. Step 6: Final answer
   x = 45,752.85