Finding the Fourth Proportional to 72,676.36, 109,018.86 and 28,294.84

Step by Step Solution

1. Step 1: Write the proportion equation
   72,676.36 : 109,018.86 = 28,294.84 : x
2. Step 2: Convert to fraction form
   72,676.36/109,018.86 = 28,294.84/x
3. Step 3: Cross multiply
   72,676.36x = 109,018.86 × 28,294.84
4. Step 4: Simplify right side
   72,676.36x = 3,084,671,200.68
5. Step 5: Solve for x
   x = 3,084,671,200.68/72,676.36
6. Step 6: Final answer
   x = 42,443.94