Finding the Fourth Proportional to 8,429.88, 12,650.47 and 3,499.53

Step by Step Solution

1. Step 1: Write the proportion equation
   8,429.88 : 12,650.47 = 3,499.53 : x
2. Step 2: Convert to fraction form
   8,429.88/12,650.47 = 3,499.53/x
3. Step 3: Cross multiply
   8,429.88x = 12,650.47 × 3,499.53
4. Step 4: Simplify right side
   8,429.88x = 44,270,643.09
5. Step 5: Solve for x
   x = 44,270,643.09/8,429.88
6. Step 6: Final answer
   x = 5,251.63