Finding the Fourth Proportional to 9,819.38, 13,550.63 and 5,840.40

Step by Step Solution

1. Step 1: Write the proportion equation
   9,819.38 : 13,550.63 = 5,840.40 : x
2. Step 2: Convert to fraction form
   9,819.38/13,550.63 = 5,840.40/x
3. Step 3: Cross multiply
   9,819.38x = 13,550.63 × 5,840.40
4. Step 4: Simplify right side
   9,819.38x = 79,141,099.45
5. Step 5: Solve for x
   x = 79,141,099.45/9,819.38
6. Step 6: Final answer
   x = 8,059.68