Finding the Fourth Proportional to 8,499.61, 11,728.60 and 4,964.88

Step by Step Solution

1. Step 1: Write the proportion equation
   8,499.61 : 11,728.60 = 4,964.88 : x
2. Step 2: Convert to fraction form
   8,499.61/11,728.60 = 4,964.88/x
3. Step 3: Cross multiply
   8,499.61x = 11,728.60 × 4,964.88
4. Step 4: Simplify right side
   8,499.61x = 58,231,091.57
5. Step 5: Solve for x
   x = 58,231,091.57/8,499.61
6. Step 6: Final answer
   x = 6,851.03