Finding the Fourth Proportional to 28,633.84, 42,951.72 and 20,350.96

Step by Step Solution

1. Step 1: Write the proportion equation
   28,633.84 : 42,951.72 = 20,350.96 : x
2. Step 2: Convert to fraction form
   28,633.84/42,951.72 = 20,350.96/x
3. Step 3: Cross multiply
   28,633.84x = 42,951.72 × 20,350.96
4. Step 4: Simplify right side
   28,633.84x = 874,108,735.65
5. Step 5: Solve for x
   x = 874,108,735.65/28,633.84
6. Step 6: Final answer
   x = 30,527.12