Finding the Fourth Proportional to 7,826.86, 10,800.89 and 4,289.99

Step by Step Solution

1. Step 1: Write the proportion equation
   7,826.86 : 10,800.89 = 4,289.99 : x
2. Step 2: Convert to fraction form
   7,826.86/10,800.89 = 4,289.99/x
3. Step 3: Cross multiply
   7,826.86x = 10,800.89 × 4,289.99
4. Step 4: Simplify right side
   7,826.86x = 46,335,710.09
5. Step 5: Solve for x
   x = 46,335,710.09/7,826.86
6. Step 6: Final answer
   x = 5,920.09