Finding the Fourth Proportional to 82,481.84, 123,721.67 and 20,152.88

Step by Step Solution

1. Step 1: Write the proportion equation
   82,481.84 : 123,721.67 = 20,152.88 : x
2. Step 2: Convert to fraction form
   82,481.84/123,721.67 = 20,152.88/x
3. Step 3: Cross multiply
   82,481.84x = 123,721.67 × 20,152.88
4. Step 4: Simplify right side
   82,481.84x = 2,493,347,350.30
5. Step 5: Solve for x
   x = 2,493,347,350.30/82,481.84
6. Step 6: Final answer
   x = 30,229.05