Finding the Fourth Proportional to 82,807.24, 124,212.90 and 30,216.72

Step by Step Solution

1. Step 1: Write the proportion equation
   82,807.24 : 124,212.90 = 30,216.72 : x
2. Step 2: Convert to fraction form
   82,807.24/124,212.90 = 30,216.72/x
3. Step 3: Cross multiply
   82,807.24x = 124,212.90 × 30,216.72
4. Step 4: Simplify right side
   82,807.24x = 3,753,306,419.69
5. Step 5: Solve for x
   x = 3,753,306,419.69/82,807.24
6. Step 6: Final answer
   x = 45,325.82