Finding the Fourth Proportional to 47,646.88, 65,796.96 and 30,680.56

Step by Step Solution

1. Step 1: Write the proportion equation
   47,646.88 : 65,796.96 = 30,680.56 : x
2. Step 2: Convert to fraction form
   47,646.88/65,796.96 = 30,680.56/x
3. Step 3: Cross multiply
   47,646.88x = 65,796.96 × 30,680.56
4. Step 4: Simplify right side
   47,646.88x = 2,018,687,579.10
5. Step 5: Solve for x
   x = 2,018,687,579.10/47,646.88
6. Step 6: Final answer
   x = 42,367.68