Finding the Fourth Proportional to 82,297.89, 123,235.98 and 56,962.31

Step by Step Solution

1. Step 1: Write the proportion equation
   82,297.89 : 123,235.98 = 56,962.31 : x
2. Step 2: Convert to fraction form
   82,297.89/123,235.98 = 56,962.31/x
3. Step 3: Cross multiply
   82,297.89x = 123,235.98 × 56,962.31
4. Step 4: Simplify right side
   82,297.89x = 7,019,805,479.73
5. Step 5: Solve for x
   x = 7,019,805,479.73/82,297.89
6. Step 6: Final answer
   x = 85,297.51