Finding the Fourth Proportional to 82,405.73, 123,270.06 and 65,798.20

Step by Step Solution

1. Step 1: Write the proportion equation
   82,405.73 : 123,270.06 = 65,798.20 : x
2. Step 2: Convert to fraction form
   82,405.73/123,270.06 = 65,798.20/x
3. Step 3: Cross multiply
   82,405.73x = 123,270.06 × 65,798.20
4. Step 4: Simplify right side
   82,405.73x = 8,110,948,061.89
5. Step 5: Solve for x
   x = 8,110,948,061.89/82,405.73
6. Step 6: Final answer
   x = 98,426.99