Finding the Fourth Proportional to 82,770, 123,859.62 and 71,714.58

Step by Step Solution

1. Step 1: Write the proportion equation
   82,770 : 123,859.62 = 71,714.58 : x
2. Step 2: Convert to fraction form
   82,770/123,859.62 = 71,714.58/x
3. Step 3: Cross multiply
   82,770x = 123,859.62 × 71,714.58
4. Step 4: Simplify right side
   82,770x = 8,882,540,627.26
5. Step 5: Solve for x
   x = 8,882,540,627.26/82,770
6. Step 6: Final answer
   x = 107,315.94