Finding the Fourth Proportional to 12,656.25, 17,469.27 and 8,464.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,656.25 : 17,469.27 = 8,464.50 : x
2. Step 2: Convert to fraction form
   12,656.25/17,469.27 = 8,464.50/x
3. Step 3: Cross multiply
   12,656.25x = 17,469.27 × 8,464.50
4. Step 4: Simplify right side
   12,656.25x = 147,868,635.92
5. Step 5: Solve for x
   x = 147,868,635.92/12,656.25
6. Step 6: Final answer
   x = 11,683.45