Finding the Fourth Proportional to 9,819.51, 13,550.71 and 5,343.28

Step by Step Solution

1. Step 1: Write the proportion equation
   9,819.51 : 13,550.71 = 5,343.28 : x
2. Step 2: Convert to fraction form
   9,819.51/13,550.71 = 5,343.28/x
3. Step 3: Cross multiply
   9,819.51x = 13,550.71 × 5,343.28
4. Step 4: Simplify right side
   9,819.51x = 72,405,200.51
5. Step 5: Solve for x
   x = 72,405,200.51/9,819.51
6. Step 6: Final answer
   x = 7,373.60