Finding the Fourth Proportional to 8,928.89, 12,308.81 and 6,800.81

Step by Step Solution

1. Step 1: Write the proportion equation
   8,928.89 : 12,308.81 = 6,800.81 : x
2. Step 2: Convert to fraction form
   8,928.89/12,308.81 = 6,800.81/x
3. Step 3: Cross multiply
   8,928.89x = 12,308.81 × 6,800.81
4. Step 4: Simplify right side
   8,928.89x = 83,709,782.59
5. Step 5: Solve for x
   x = 83,709,782.59/8,928.89
6. Step 6: Final answer
   x = 9,375.17