Finding the Fourth Proportional to 22,656.17, 31,265.34 and 12,447.34

Step by Step Solution

1. Step 1: Write the proportion equation
   22,656.17 : 31,265.34 = 12,447.34 : x
2. Step 2: Convert to fraction form
   22,656.17/31,265.34 = 12,447.34/x
3. Step 3: Cross multiply
   22,656.17x = 31,265.34 × 12,447.34
4. Step 4: Simplify right side
   22,656.17x = 389,170,317.20
5. Step 5: Solve for x
   x = 389,170,317.20/22,656.17
6. Step 6: Final answer
   x = 17,177.23