Finding the Fourth Proportional to 22,684.83, 31,310.06 and 13,131.29

Step by Step Solution

1. Step 1: Write the proportion equation
   22,684.83 : 31,310.06 = 13,131.29 : x
2. Step 2: Convert to fraction form
   22,684.83/31,310.06 = 13,131.29/x
3. Step 3: Cross multiply
   22,684.83x = 31,310.06 × 13,131.29
4. Step 4: Simplify right side
   22,684.83x = 411,141,255.57
5. Step 5: Solve for x
   x = 411,141,255.57/22,684.83
6. Step 6: Final answer
   x = 18,124.06