Finding the Fourth Proportional to 82,810.72, 124,216.23 and 30,207.97

Step by Step Solution

1. Step 1: Write the proportion equation
   82,810.72 : 124,216.23 = 30,207.97 : x
2. Step 2: Convert to fraction form
   82,810.72/124,216.23 = 30,207.97/x
3. Step 3: Cross multiply
   82,810.72x = 124,216.23 × 30,207.97
4. Step 4: Simplify right side
   82,810.72x = 3,752,320,149.35
5. Step 5: Solve for x
   x = 3,752,320,149.35/82,810.72
6. Step 6: Final answer
   x = 45,312.01