Finding the Fourth Proportional to 82,097.31, 123,122.20 and 28,056.54

Step by Step Solution

1. Step 1: Write the proportion equation
   82,097.31 : 123,122.20 = 28,056.54 : x
2. Step 2: Convert to fraction form
   82,097.31/123,122.20 = 28,056.54/x
3. Step 3: Cross multiply
   82,097.31x = 123,122.20 × 28,056.54
4. Step 4: Simplify right side
   82,097.31x = 3,454,382,929.19
5. Step 5: Solve for x
   x = 3,454,382,929.19/82,097.31
6. Step 6: Final answer
   x = 42,076.69