Finding the Fourth Proportional to 47,791.89, 65,956.28 and 28,672.49

Step by Step Solution

1. Step 1: Write the proportion equation
   47,791.89 : 65,956.28 = 28,672.49 : x
2. Step 2: Convert to fraction form
   47,791.89/65,956.28 = 28,672.49/x
3. Step 3: Cross multiply
   47,791.89x = 65,956.28 × 28,672.49
4. Step 4: Simplify right side
   47,791.89x = 1,891,130,800.27
5. Step 5: Solve for x
   x = 1,891,130,800.27/47,791.89
6. Step 6: Final answer
   x = 39,570.12