Finding the Fourth Proportional to 82,915.82, 124,334.83 and 30,288.50

Step by Step Solution

1. Step 1: Write the proportion equation
   82,915.82 : 124,334.83 = 30,288.50 : x
2. Step 2: Convert to fraction form
   82,915.82/124,334.83 = 30,288.50/x
3. Step 3: Cross multiply
   82,915.82x = 124,334.83 × 30,288.50
4. Step 4: Simplify right side
   82,915.82x = 3,765,915,498.46
5. Step 5: Solve for x
   x = 3,765,915,498.46/82,915.82
6. Step 6: Final answer
   x = 45,418.54