Finding the Fourth Proportional to 11,826.21, 17,729.69 and 4,426.52

Step by Step Solution

1. Step 1: Write the proportion equation
   11,826.21 : 17,729.69 = 4,426.52 : x
2. Step 2: Convert to fraction form
   11,826.21/17,729.69 = 4,426.52/x
3. Step 3: Cross multiply
   11,826.21x = 17,729.69 × 4,426.52
4. Step 4: Simplify right side
   11,826.21x = 78,480,771.99
5. Step 5: Solve for x
   x = 78,480,771.99/11,826.21
6. Step 6: Final answer
   x = 6,636.18