Finding the Fourth Proportional to 7,839.28, 10,818.46 and 4,302.72

Step by Step Solution

1. Step 1: Write the proportion equation
   7,839.28 : 10,818.46 = 4,302.72 : x
2. Step 2: Convert to fraction form
   7,839.28/10,818.46 = 4,302.72/x
3. Step 3: Cross multiply
   7,839.28x = 10,818.46 × 4,302.72
4. Step 4: Simplify right side
   7,839.28x = 46,548,809.59
5. Step 5: Solve for x
   x = 46,548,809.59/7,839.28
6. Step 6: Final answer
   x = 5,937.89