Finding the Fourth Proportional to 72,930.48, 109,438.77 and 30,807.83

Step by Step Solution

1. Step 1: Write the proportion equation
   72,930.48 : 109,438.77 = 30,807.83 : x
2. Step 2: Convert to fraction form
   72,930.48/109,438.77 = 30,807.83/x
3. Step 3: Cross multiply
   72,930.48x = 109,438.77 × 30,807.83
4. Step 4: Simplify right side
   72,930.48x = 3,371,571,021.57
5. Step 5: Solve for x
   x = 3,371,571,021.57/72,930.48
6. Step 6: Final answer
   x = 46,229.93