Finding the Fourth Proportional to 65,463.12, 90,315 and 44,208.72

Step by Step Solution

1. Step 1: Write the proportion equation
   65,463.12 : 90,315 = 44,208.72 : x
2. Step 2: Convert to fraction form
   65,463.12/90,315 = 44,208.72/x
3. Step 3: Cross multiply
   65,463.12x = 90,315 × 44,208.72
4. Step 4: Simplify right side
   65,463.12x = 3,992,710,546.80
5. Step 5: Solve for x
   x = 3,992,710,546.80/65,463.12
6. Step 6: Final answer
   x = 60,991.75