Finding the Fourth Proportional to 82,679.29, 123,920.52 and 57,583.48

Step by Step Solution

1. Step 1: Write the proportion equation
   82,679.29 : 123,920.52 = 57,583.48 : x
2. Step 2: Convert to fraction form
   82,679.29/123,920.52 = 57,583.48/x
3. Step 3: Cross multiply
   82,679.29x = 123,920.52 × 57,583.48
4. Step 4: Simplify right side
   82,679.29x = 7,135,774,785.01
5. Step 5: Solve for x
   x = 7,135,774,785.01/82,679.29
6. Step 6: Final answer
   x = 86,306.68