Finding the Fourth Proportional to 72,821.85, 109,275.23 and 30,699.35

Step by Step Solution

1. Step 1: Write the proportion equation
   72,821.85 : 109,275.23 = 30,699.35 : x
2. Step 2: Convert to fraction form
   72,821.85/109,275.23 = 30,699.35/x
3. Step 3: Cross multiply
   72,821.85x = 109,275.23 × 30,699.35
4. Step 4: Simplify right side
   72,821.85x = 3,354,678,532.10
5. Step 5: Solve for x
   x = 3,354,678,532.10/72,821.85
6. Step 6: Final answer
   x = 46,066.92