Finding the Fourth Proportional to 9,819.43, 13,551.10 and 5,343.47

Step by Step Solution

1. Step 1: Write the proportion equation
   9,819.43 : 13,551.10 = 5,343.47 : x
2. Step 2: Convert to fraction form
   9,819.43/13,551.10 = 5,343.47/x
3. Step 3: Cross multiply
   9,819.43x = 13,551.10 × 5,343.47
4. Step 4: Simplify right side
   9,819.43x = 72,409,866.02
5. Step 5: Solve for x
   x = 72,409,866.02/9,819.43
6. Step 6: Final answer
   x = 7,374.14