Finding the Fourth Proportional to 22,648.25, 31,254.59 and 13,214.99

Step by Step Solution

1. Step 1: Write the proportion equation
   22,648.25 : 31,254.59 = 13,214.99 : x
2. Step 2: Convert to fraction form
   22,648.25/31,254.59 = 13,214.99/x
3. Step 3: Cross multiply
   22,648.25x = 31,254.59 × 13,214.99
4. Step 4: Simplify right side
   22,648.25x = 413,029,094.30
5. Step 5: Solve for x
   x = 413,029,094.30/22,648.25
6. Step 6: Final answer
   x = 18,236.69