Finding the Fourth Proportional to 82,687.76, 124,031.72 and 30,097.68

Step by Step Solution

1. Step 1: Write the proportion equation
   82,687.76 : 124,031.72 = 30,097.68 : x
2. Step 2: Convert to fraction form
   82,687.76/124,031.72 = 30,097.68/x
3. Step 3: Cross multiply
   82,687.76x = 124,031.72 × 30,097.68
4. Step 4: Simplify right side
   82,687.76x = 3,733,067,018.41
5. Step 5: Solve for x
   x = 3,733,067,018.41/82,687.76
6. Step 6: Final answer
   x = 45,146.55