Finding the Fourth Proportional to 82,293.57, 123,229.53 and 56,957.99

Step by Step Solution

1. Step 1: Write the proportion equation
   82,293.57 : 123,229.53 = 56,957.99 : x
2. Step 2: Convert to fraction form
   82,293.57/123,229.53 = 56,957.99/x
3. Step 3: Cross multiply
   82,293.57x = 123,229.53 × 56,957.99
4. Step 4: Simplify right side
   82,293.57x = 7,018,905,721.30
5. Step 5: Solve for x
   x = 7,018,905,721.30/82,293.57
6. Step 6: Final answer
   x = 85,291.06