Finding the Fourth Proportional to 22,626.15, 31,224.09 and 13,196.52

Step by Step Solution

1. Step 1: Write the proportion equation
   22,626.15 : 31,224.09 = 13,196.52 : x
2. Step 2: Convert to fraction form
   22,626.15/31,224.09 = 13,196.52/x
3. Step 3: Cross multiply
   22,626.15x = 31,224.09 × 13,196.52
4. Step 4: Simplify right side
   22,626.15x = 412,049,328.17
5. Step 5: Solve for x
   x = 412,049,328.17/22,626.15
6. Step 6: Final answer
   x = 18,211.20