Finding the Fourth Proportional to 10,291.05, 14,200.72 and 5,815.19

Step by Step Solution

1. Step 1: Write the proportion equation
   10,291.05 : 14,200.72 = 5,815.19 : x
2. Step 2: Convert to fraction form
   10,291.05/14,200.72 = 5,815.19/x
3. Step 3: Cross multiply
   10,291.05x = 14,200.72 × 5,815.19
4. Step 4: Simplify right side
   10,291.05x = 82,579,905.90
5. Step 5: Solve for x
   x = 82,579,905.90/10,291.05
6. Step 6: Final answer
   x = 8,024.44