Finding the Fourth Proportional to 8,964.88, 13,448.88 and 3,418.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,964.88 : 13,448.88 = 3,418.72 : x
2. Step 2: Convert to fraction form
   8,964.88/13,448.88 = 3,418.72/x
3. Step 3: Cross multiply
   8,964.88x = 13,448.88 × 3,418.72
4. Step 4: Simplify right side
   8,964.88x = 45,977,955.03
5. Step 5: Solve for x
   x = 45,977,955.03/8,964.88
6. Step 6: Final answer
   x = 5,128.67