Finding the Fourth Proportional to 8,188.83, 12,287.25 and 3,809.34

Step by Step Solution

1. Step 1: Write the proportion equation
   8,188.83 : 12,287.25 = 3,809.34 : x
2. Step 2: Convert to fraction form
   8,188.83/12,287.25 = 3,809.34/x
3. Step 3: Cross multiply
   8,188.83x = 12,287.25 × 3,809.34
4. Step 4: Simplify right side
   8,188.83x = 46,806,312.92
5. Step 5: Solve for x
   x = 46,806,312.92/8,188.83
6. Step 6: Final answer
   x = 5,715.87