Finding the Fourth Proportional to 11,300.68, 16,951.18 and 3,509

Step by Step Solution

1. Step 1: Write the proportion equation
   11,300.68 : 16,951.18 = 3,509 : x
2. Step 2: Convert to fraction form
   11,300.68/16,951.18 = 3,509/x
3. Step 3: Cross multiply
   11,300.68x = 16,951.18 × 3,509
4. Step 4: Simplify right side
   11,300.68x = 59,481,690.62
5. Step 5: Solve for x
   x = 59,481,690.62/11,300.68
6. Step 6: Final answer
   x = 5,263.55