Finding the Fourth Proportional to 82,280.76, 123,421.54 and 19,951.24

Step by Step Solution

1. Step 1: Write the proportion equation
   82,280.76 : 123,421.54 = 19,951.24 : x
2. Step 2: Convert to fraction form
   82,280.76/123,421.54 = 19,951.24/x
3. Step 3: Cross multiply
   82,280.76x = 123,421.54 × 19,951.24
4. Step 4: Simplify right side
   82,280.76x = 2,462,412,765.71
5. Step 5: Solve for x
   x = 2,462,412,765.71/82,280.76
6. Step 6: Final answer
   x = 29,926.96