Finding the Fourth Proportional to 82,685.76, 123,885.99 and 45,272.76

Step by Step Solution

1. Step 1: Write the proportion equation
   82,685.76 : 123,885.99 = 45,272.76 : x
2. Step 2: Convert to fraction form
   82,685.76/123,885.99 = 45,272.76/x
3. Step 3: Cross multiply
   82,685.76x = 123,885.99 × 45,272.76
4. Step 4: Simplify right side
   82,685.76x = 5,608,660,692.63
5. Step 5: Solve for x
   x = 5,608,660,692.63/82,685.76
6. Step 6: Final answer
   x = 67,831.04