Finding the Fourth Proportional to 72,755.88, 109,133.87 and 20,165.82

Step by Step Solution

1. Step 1: Write the proportion equation
   72,755.88 : 109,133.87 = 20,165.82 : x
2. Step 2: Convert to fraction form
   72,755.88/109,133.87 = 20,165.82/x
3. Step 3: Cross multiply
   72,755.88x = 109,133.87 × 20,165.82
4. Step 4: Simplify right side
   72,755.88x = 2,200,773,877.49
5. Step 5: Solve for x
   x = 2,200,773,877.49/72,755.88
6. Step 6: Final answer
   x = 30,248.74