Finding the Fourth Proportional to 72,858.83, 109,229.31 and 30,711.69

Step by Step Solution

1. Step 1: Write the proportion equation
   72,858.83 : 109,229.31 = 30,711.69 : x
2. Step 2: Convert to fraction form
   72,858.83/109,229.31 = 30,711.69/x
3. Step 3: Cross multiply
   72,858.83x = 109,229.31 × 30,711.69
4. Step 4: Simplify right side
   72,858.83x = 3,354,616,707.63
5. Step 5: Solve for x
   x = 3,354,616,707.63/72,858.83
6. Step 6: Final answer
   x = 46,042.70