Finding the Fourth Proportional to 82,472.20, 123,647.74 and 26,279.98

Step by Step Solution

1. Step 1: Write the proportion equation
   82,472.20 : 123,647.74 = 26,279.98 : x
2. Step 2: Convert to fraction form
   82,472.20/123,647.74 = 26,279.98/x
3. Step 3: Cross multiply
   82,472.20x = 123,647.74 × 26,279.98
4. Step 4: Simplify right side
   82,472.20x = 3,249,459,759.43
5. Step 5: Solve for x
   x = 3,249,459,759.43/82,472.20
6. Step 6: Final answer
   x = 39,400.67