Finding the Fourth Proportional to 47,456, 65,490.42 and 30,718.16

Step by Step Solution

1. Step 1: Write the proportion equation
   47,456 : 65,490.42 = 30,718.16 : x
2. Step 2: Convert to fraction form
   47,456/65,490.42 = 30,718.16/x
3. Step 3: Cross multiply
   47,456x = 65,490.42 × 30,718.16
4. Step 4: Simplify right side
   47,456x = 2,011,745,200.03
5. Step 5: Solve for x
   x = 2,011,745,200.03/47,456
6. Step 6: Final answer
   x = 42,391.80