Finding the Fourth Proportional to 72,805.57, 109,208.28 and 22,890.03

Step by Step Solution

1. Step 1: Write the proportion equation
   72,805.57 : 109,208.28 = 22,890.03 : x
2. Step 2: Convert to fraction form
   72,805.57/109,208.28 = 22,890.03/x
3. Step 3: Cross multiply
   72,805.57x = 109,208.28 × 22,890.03
4. Step 4: Simplify right side
   72,805.57x = 2,499,780,805.45
5. Step 5: Solve for x
   x = 2,499,780,805.45/72,805.57
6. Step 6: Final answer
   x = 34,335.02