Finding the Fourth Proportional to 9,819.34, 13,550.72 and 5,343.09

Step by Step Solution

1. Step 1: Write the proportion equation
   9,819.34 : 13,550.72 = 5,343.09 : x
2. Step 2: Convert to fraction form
   9,819.34/13,550.72 = 5,343.09/x
3. Step 3: Cross multiply
   9,819.34x = 13,550.72 × 5,343.09
4. Step 4: Simplify right side
   9,819.34x = 72,402,689.81
5. Step 5: Solve for x
   x = 72,402,689.81/9,819.34
6. Step 6: Final answer
   x = 7,373.48