Finding the Fourth Proportional to 8,717.98, 12,030.72 and 4,739.10

Step by Step Solution

1. Step 1: Write the proportion equation
   8,717.98 : 12,030.72 = 4,739.10 : x
2. Step 2: Convert to fraction form
   8,717.98/12,030.72 = 4,739.10/x
3. Step 3: Cross multiply
   8,717.98x = 12,030.72 × 4,739.10
4. Step 4: Simplify right side
   8,717.98x = 57,014,785.15
5. Step 5: Solve for x
   x = 57,014,785.15/8,717.98
6. Step 6: Final answer
   x = 6,539.91