Finding the Fourth Proportional to 8,432.91, 12,651.59 and 3,436.83

Step by Step Solution

1. Step 1: Write the proportion equation
   8,432.91 : 12,651.59 = 3,436.83 : x
2. Step 2: Convert to fraction form
   8,432.91/12,651.59 = 3,436.83/x
3. Step 3: Cross multiply
   8,432.91x = 12,651.59 × 3,436.83
4. Step 4: Simplify right side
   8,432.91x = 43,481,372.65
5. Step 5: Solve for x
   x = 43,481,372.65/8,432.91
6. Step 6: Final answer
   x = 5,156.15