Finding the Fourth Proportional to 7,826.58, 10,800.90 and 4,289.76

Step by Step Solution

1. Step 1: Write the proportion equation
   7,826.58 : 10,800.90 = 4,289.76 : x
2. Step 2: Convert to fraction form
   7,826.58/10,800.90 = 4,289.76/x
3. Step 3: Cross multiply
   7,826.58x = 10,800.90 × 4,289.76
4. Step 4: Simplify right side
   7,826.58x = 46,333,268.78
5. Step 5: Solve for x
   x = 46,333,268.78/7,826.58
6. Step 6: Final answer
   x = 5,919.99