Finding the Fourth Proportional to 10,819.76, 16,232.96 and 5,272.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,819.76 : 16,232.96 = 5,272.31 : x
2. Step 2: Convert to fraction form
   10,819.76/16,232.96 = 5,272.31/x
3. Step 3: Cross multiply
   10,819.76x = 16,232.96 × 5,272.31
4. Step 4: Simplify right side
   10,819.76x = 85,585,211.56
5. Step 5: Solve for x
   x = 85,585,211.56/10,819.76
6. Step 6: Final answer
   x = 7,910.08