Finding the Fourth Proportional to 82,109.20, 123,176.60 and 26,687.76

Step by Step Solution

1. Step 1: Write the proportion equation
   82,109.20 : 123,176.60 = 26,687.76 : x
2. Step 2: Convert to fraction form
   82,109.20/123,176.60 = 26,687.76/x
3. Step 3: Cross multiply
   82,109.20x = 123,176.60 × 26,687.76
4. Step 4: Simplify right side
   82,109.20x = 3,287,307,538.42
5. Step 5: Solve for x
   x = 3,287,307,538.42/82,109.20
6. Step 6: Final answer
   x = 40,035.80