Finding the Fourth Proportional to 82,690.67, 124,065.16 and 30,105.47

Step by Step Solution

1. Step 1: Write the proportion equation
   82,690.67 : 124,065.16 = 30,105.47 : x
2. Step 2: Convert to fraction form
   82,690.67/124,065.16 = 30,105.47/x
3. Step 3: Cross multiply
   82,690.67x = 124,065.16 × 30,105.47
4. Step 4: Simplify right side
   82,690.67x = 3,735,039,834.98
5. Step 5: Solve for x
   x = 3,735,039,834.98/82,690.67
6. Step 6: Final answer
   x = 45,168.82