Finding the Fourth Proportional to 16,858.96, 23,264.52 and 9,405.52

Step by Step Solution

1. Step 1: Write the proportion equation
   16,858.96 : 23,264.52 = 9,405.52 : x
2. Step 2: Convert to fraction form
   16,858.96/23,264.52 = 9,405.52/x
3. Step 3: Cross multiply
   16,858.96x = 23,264.52 × 9,405.52
4. Step 4: Simplify right side
   16,858.96x = 218,814,908.15
5. Step 5: Solve for x
   x = 218,814,908.15/16,858.96
6. Step 6: Final answer
   x = 12,979.15