Finding the Fourth Proportional to 8,491.47, 12,726.21 and 4,743.15

Step by Step Solution

1. Step 1: Write the proportion equation
   8,491.47 : 12,726.21 = 4,743.15 : x
2. Step 2: Convert to fraction form
   8,491.47/12,726.21 = 4,743.15/x
3. Step 3: Cross multiply
   8,491.47x = 12,726.21 × 4,743.15
4. Step 4: Simplify right side
   8,491.47x = 60,362,322.96
5. Step 5: Solve for x
   x = 60,362,322.96/8,491.47
6. Step 6: Final answer
   x = 7,108.58