Finding the Fourth Proportional to 82,532.20, 123,817.56 and 65,728.84

Step by Step Solution

1. Step 1: Write the proportion equation
   82,532.20 : 123,817.56 = 65,728.84 : x
2. Step 2: Convert to fraction form
   82,532.20/123,817.56 = 65,728.84/x
3. Step 3: Cross multiply
   82,532.20x = 123,817.56 × 65,728.84
4. Step 4: Simplify right side
   82,532.20x = 8,138,384,590.43
5. Step 5: Solve for x
   x = 8,138,384,590.43/82,532.20
6. Step 6: Final answer
   x = 98,608.60