Finding the Fourth Proportional to 7,819.10, 10,790.55 and 4,282.31

Step by Step Solution

1. Step 1: Write the proportion equation
   7,819.10 : 10,790.55 = 4,282.31 : x
2. Step 2: Convert to fraction form
   7,819.10/10,790.55 = 4,282.31/x
3. Step 3: Cross multiply
   7,819.10x = 10,790.55 × 4,282.31
4. Step 4: Simplify right side
   7,819.10x = 46,208,426.22
5. Step 5: Solve for x
   x = 46,208,426.22/7,819.10
6. Step 6: Final answer
   x = 5,909.69