Finding the Fourth Proportional to 72,892.38, 109,291.71 and 30,760.92

Step by Step Solution

1. Step 1: Write the proportion equation
   72,892.38 : 109,291.71 = 30,760.92 : x
2. Step 2: Convert to fraction form
   72,892.38/109,291.71 = 30,760.92/x
3. Step 3: Cross multiply
   72,892.38x = 109,291.71 × 30,760.92
4. Step 4: Simplify right side
   72,892.38x = 3,361,913,547.97
5. Step 5: Solve for x
   x = 3,361,913,547.97/72,892.38
6. Step 6: Final answer
   x = 46,121.60