Finding the Fourth Proportional to 72,805.09, 109,224.02 and 28,444.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,805.09 : 109,224.02 = 28,444.50 : x
2. Step 2: Convert to fraction form
   72,805.09/109,224.02 = 28,444.50/x
3. Step 3: Cross multiply
   72,805.09x = 109,224.02 × 28,444.50
4. Step 4: Simplify right side
   72,805.09x = 3,106,822,636.89
5. Step 5: Solve for x
   x = 3,106,822,636.89/72,805.09
6. Step 6: Final answer
   x = 42,673.15