Finding the Fourth Proportional to 82,693.62, 123,942.01 and 57,597.80

Step by Step Solution

1. Step 1: Write the proportion equation
   82,693.62 : 123,942.01 = 57,597.80 : x
2. Step 2: Convert to fraction form
   82,693.62/123,942.01 = 57,597.80/x
3. Step 3: Cross multiply
   82,693.62x = 123,942.01 × 57,597.80
4. Step 4: Simplify right side
   82,693.62x = 7,138,787,103.58
5. Step 5: Solve for x
   x = 7,138,787,103.58/82,693.62
6. Step 6: Final answer
   x = 86,328.15