Finding the Fourth Proportional to 16,856.25, 23,261.63 and 9,404.25

Step by Step Solution

1. Step 1: Write the proportion equation
   16,856.25 : 23,261.63 = 9,404.25 : x
2. Step 2: Convert to fraction form
   16,856.25/23,261.63 = 9,404.25/x
3. Step 3: Cross multiply
   16,856.25x = 23,261.63 × 9,404.25
4. Step 4: Simplify right side
   16,856.25x = 218,758,136.91
5. Step 5: Solve for x
   x = 218,758,136.91/16,856.25
6. Step 6: Final answer
   x = 12,977.87