Finding the Fourth Proportional to 9,842.78, 13,582.98 and 5,366.54

Step by Step Solution

1. Step 1: Write the proportion equation
   9,842.78 : 13,582.98 = 5,366.54 : x
2. Step 2: Convert to fraction form
   9,842.78/13,582.98 = 5,366.54/x
3. Step 3: Cross multiply
   9,842.78x = 13,582.98 × 5,366.54
4. Step 4: Simplify right side
   9,842.78x = 72,893,605.49
5. Step 5: Solve for x
   x = 72,893,605.49/9,842.78
6. Step 6: Final answer
   x = 7,405.79