Finding the Fourth Proportional to 9,819.40, 13,550.64 and 5,343.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,819.40 : 13,550.64 = 5,343.10 : x
2. Step 2: Convert to fraction form
   9,819.40/13,550.64 = 5,343.10/x
3. Step 3: Cross multiply
   9,819.40x = 13,550.64 × 5,343.10
4. Step 4: Simplify right side
   9,819.40x = 72,402,424.58
5. Step 5: Solve for x
   x = 72,402,424.58/9,819.40
6. Step 6: Final answer
   x = 7,373.41