Finding the Fourth Proportional to 82,681.74, 124,022.70 and 30,091.68

Step by Step Solution

1. Step 1: Write the proportion equation
   82,681.74 : 124,022.70 = 30,091.68 : x
2. Step 2: Convert to fraction form
   82,681.74/124,022.70 = 30,091.68/x
3. Step 3: Cross multiply
   82,681.74x = 124,022.70 × 30,091.68
4. Step 4: Simplify right side
   82,681.74x = 3,732,051,401.14
5. Step 5: Solve for x
   x = 3,732,051,401.14/82,681.74
6. Step 6: Final answer
   x = 45,137.55