Finding the Fourth Proportional to 146,796.72, 220,229.54 and 45,589.60

Step by Step Solution

1. Step 1: Write the proportion equation
   146,796.72 : 220,229.54 = 45,589.60 : x
2. Step 2: Convert to fraction form
   146,796.72/220,229.54 = 45,589.60/x
3. Step 3: Cross multiply
   146,796.72x = 220,229.54 × 45,589.60
4. Step 4: Simplify right side
   146,796.72x = 10,040,176,636.78
5. Step 5: Solve for x
   x = 10,040,176,636.78/146,796.72
6. Step 6: Final answer
   x = 68,395.10