Finding the Fourth Proportional to 72,934.71, 109,420.52 and 20,344.16

Step by Step Solution

1. Step 1: Write the proportion equation
   72,934.71 : 109,420.52 = 20,344.16 : x
2. Step 2: Convert to fraction form
   72,934.71/109,420.52 = 20,344.16/x
3. Step 3: Cross multiply
   72,934.71x = 109,420.52 × 20,344.16
4. Step 4: Simplify right side
   72,934.71x = 2,226,067,917.34
5. Step 5: Solve for x
   x = 2,226,067,917.34/72,934.71
6. Step 6: Final answer
   x = 30,521.38