Finding the Fourth Proportional to 16,856.07, 23,261.37 and 9,404.07

Step by Step Solution

1. Step 1: Write the proportion equation
   16,856.07 : 23,261.37 = 9,404.07 : x
2. Step 2: Convert to fraction form
   16,856.07/23,261.37 = 9,404.07/x
3. Step 3: Cross multiply
   16,856.07x = 23,261.37 × 9,404.07
4. Step 4: Simplify right side
   16,856.07x = 218,751,551.78
5. Step 5: Solve for x
   x = 218,751,551.78/16,856.07
6. Step 6: Final answer
   x = 12,977.61