Finding the Fourth Proportional to 11,826.62, 16,320.76 and 6,449.10

Step by Step Solution

1. Step 1: Write the proportion equation
   11,826.62 : 16,320.76 = 6,449.10 : x
2. Step 2: Convert to fraction form
   11,826.62/16,320.76 = 6,449.10/x
3. Step 3: Cross multiply
   11,826.62x = 16,320.76 × 6,449.10
4. Step 4: Simplify right side
   11,826.62x = 105,254,213.32
5. Step 5: Solve for x
   x = 105,254,213.32/11,826.62
6. Step 6: Final answer
   x = 8,899.77