Finding the Fourth Proportional to 72,589, 100,164.72 and 40,753.48

Step by Step Solution

1. Step 1: Write the proportion equation
   72,589 : 100,164.72 = 40,753.48 : x
2. Step 2: Convert to fraction form
   72,589/100,164.72 = 40,753.48/x
3. Step 3: Cross multiply
   72,589x = 100,164.72 × 40,753.48
4. Step 4: Simplify right side
   72,589x = 4,082,060,913.23
5. Step 5: Solve for x
   x = 4,082,060,913.23/72,589
6. Step 6: Final answer
   x = 56,235.25