Finding the Fourth Proportional to 6,456.32, 8,909.28 and 3,623.36

Step by Step Solution

1. Step 1: Write the proportion equation
   6,456.32 : 8,909.28 = 3,623.36 : x
2. Step 2: Convert to fraction form
   6,456.32/8,909.28 = 3,623.36/x
3. Step 3: Cross multiply
   6,456.32x = 8,909.28 × 3,623.36
4. Step 4: Simplify right side
   6,456.32x = 32,281,528.78
5. Step 5: Solve for x
   x = 32,281,528.78/6,456.32
6. Step 6: Final answer
   x = 4,999.99