Finding the Fourth Proportional to 72,917.49, 109,376.69 and 20,327.43

Step by Step Solution

1. Step 1: Write the proportion equation
   72,917.49 : 109,376.69 = 20,327.43 : x
2. Step 2: Convert to fraction form
   72,917.49/109,376.69 = 20,327.43/x
3. Step 3: Cross multiply
   72,917.49x = 109,376.69 × 20,327.43
4. Step 4: Simplify right side
   72,917.49x = 2,223,347,009.61
5. Step 5: Solve for x
   x = 2,223,347,009.61/72,917.49
6. Step 6: Final answer
   x = 30,491.27