Finding the Fourth Proportional to 82,819.31, 124,247.25 and 30,228.57

Step by Step Solution

1. Step 1: Write the proportion equation
   82,819.31 : 124,247.25 = 30,228.57 : x
2. Step 2: Convert to fraction form
   82,819.31/124,247.25 = 30,228.57/x
3. Step 3: Cross multiply
   82,819.31x = 124,247.25 × 30,228.57
4. Step 4: Simplify right side
   82,819.31x = 3,755,816,693.93
5. Step 5: Solve for x
   x = 3,755,816,693.93/82,819.31
6. Step 6: Final answer
   x = 45,349.53