Finding the Fourth Proportional to 12,003.08, 16,565.46 and 7,287.80

Step by Step Solution

1. Step 1: Write the proportion equation
   12,003.08 : 16,565.46 = 7,287.80 : x
2. Step 2: Convert to fraction form
   12,003.08/16,565.46 = 7,287.80/x
3. Step 3: Cross multiply
   12,003.08x = 16,565.46 × 7,287.80
4. Step 4: Simplify right side
   12,003.08x = 120,725,759.39
5. Step 5: Solve for x
   x = 120,725,759.39/12,003.08
6. Step 6: Final answer
   x = 10,057.90