Finding the Fourth Proportional to 9,786.48, 14,654.34 and 5,394.84

Step by Step Solution

1. Step 1: Write the proportion equation
   9,786.48 : 14,654.34 = 5,394.84 : x
2. Step 2: Convert to fraction form
   9,786.48/14,654.34 = 5,394.84/x
3. Step 3: Cross multiply
   9,786.48x = 14,654.34 × 5,394.84
4. Step 4: Simplify right side
   9,786.48x = 79,057,819.61
5. Step 5: Solve for x
   x = 79,057,819.61/9,786.48
6. Step 6: Final answer
   x = 8,078.27