Finding the Fourth Proportional to 8,435.52, 12,653.34 and 3,499.80

Step by Step Solution

1. Step 1: Write the proportion equation
   8,435.52 : 12,653.34 = 3,499.80 : x
2. Step 2: Convert to fraction form
   8,435.52/12,653.34 = 3,499.80/x
3. Step 3: Cross multiply
   8,435.52x = 12,653.34 × 3,499.80
4. Step 4: Simplify right side
   8,435.52x = 44,284,159.33
5. Step 5: Solve for x
   x = 44,284,159.33/8,435.52
6. Step 6: Final answer
   x = 5,249.72