Finding the Fourth Proportional to 82,592.20, 123,014.09 and 82,189.43

Step by Step Solution

1. Step 1: Write the proportion equation
   82,592.20 : 123,014.09 = 82,189.43 : x
2. Step 2: Convert to fraction form
   82,592.20/123,014.09 = 82,189.43/x
3. Step 3: Cross multiply
   82,592.20x = 123,014.09 × 82,189.43
4. Step 4: Simplify right side
   82,592.20x = 10,110,457,529.47
5. Step 5: Solve for x
   x = 10,110,457,529.47/82,592.20
6. Step 6: Final answer
   x = 122,414.20