Finding the Fourth Proportional to 8,595.52, 12,892.72 and 3,328.40

Step by Step Solution

1. Step 1: Write the proportion equation
   8,595.52 : 12,892.72 = 3,328.40 : x
2. Step 2: Convert to fraction form
   8,595.52/12,892.72 = 3,328.40/x
3. Step 3: Cross multiply
   8,595.52x = 12,892.72 × 3,328.40
4. Step 4: Simplify right side
   8,595.52x = 42,912,129.25
5. Step 5: Solve for x
   x = 42,912,129.25/8,595.52
6. Step 6: Final answer
   x = 4,992.38