Finding the Fourth Proportional to 22,683.25, 31,302.89 and 13,251.88

Step by Step Solution

1. Step 1: Write the proportion equation
   22,683.25 : 31,302.89 = 13,251.88 : x
2. Step 2: Convert to fraction form
   22,683.25/31,302.89 = 13,251.88/x
3. Step 3: Cross multiply
   22,683.25x = 31,302.89 × 13,251.88
4. Step 4: Simplify right side
   22,683.25x = 414,822,141.93
5. Step 5: Solve for x
   x = 414,822,141.93/22,683.25
6. Step 6: Final answer
   x = 18,287.60