Finding the Fourth Proportional to 11,185.08, 15,435.54 and 6,404.82

Step by Step Solution

1. Step 1: Write the proportion equation
   11,185.08 : 15,435.54 = 6,404.82 : x
2. Step 2: Convert to fraction form
   11,185.08/15,435.54 = 6,404.82/x
3. Step 3: Cross multiply
   11,185.08x = 15,435.54 × 6,404.82
4. Step 4: Simplify right side
   11,185.08x = 98,861,855.30
5. Step 5: Solve for x
   x = 98,861,855.30/11,185.08
6. Step 6: Final answer
   x = 8,838.73