Finding the Fourth Proportional to 15,417.36, 23,116.32 and 8,496.72

Step by Step Solution

1. Step 1: Write the proportion equation
   15,417.36 : 23,116.32 = 8,496.72 : x
2. Step 2: Convert to fraction form
   15,417.36/23,116.32 = 8,496.72/x
3. Step 3: Cross multiply
   15,417.36x = 23,116.32 × 8,496.72
4. Step 4: Simplify right side
   15,417.36x = 196,412,898.47
5. Step 5: Solve for x
   x = 196,412,898.47/15,417.36
6. Step 6: Final answer
   x = 12,739.72