Finding the Fourth Proportional to 80,439.30, 111,019.50 and 44,640.84

Step by Step Solution

1. Step 1: Write the proportion equation
   80,439.30 : 111,019.50 = 44,640.84 : x
2. Step 2: Convert to fraction form
   80,439.30/111,019.50 = 44,640.84/x
3. Step 3: Cross multiply
   80,439.30x = 111,019.50 × 44,640.84
4. Step 4: Simplify right side
   80,439.30x = 4,956,003,736.38
5. Step 5: Solve for x
   x = 4,956,003,736.38/80,439.30
6. Step 6: Final answer
   x = 61,611.72