Finding the Fourth Proportional to 8,499.23, 12,747.78 and 4,546.31

Step by Step Solution

1. Step 1: Write the proportion equation
   8,499.23 : 12,747.78 = 4,546.31 : x
2. Step 2: Convert to fraction form
   8,499.23/12,747.78 = 4,546.31/x
3. Step 3: Cross multiply
   8,499.23x = 12,747.78 × 4,546.31
4. Step 4: Simplify right side
   8,499.23x = 57,955,359.69
5. Step 5: Solve for x
   x = 57,955,359.69/8,499.23
6. Step 6: Final answer
   x = 6,818.90