Finding the Fourth Proportional to 22,585, 31,168.38 and 13,632.34

Step by Step Solution

1. Step 1: Write the proportion equation
   22,585 : 31,168.38 = 13,632.34 : x
2. Step 2: Convert to fraction form
   22,585/31,168.38 = 13,632.34/x
3. Step 3: Cross multiply
   22,585x = 31,168.38 × 13,632.34
4. Step 4: Simplify right side
   22,585x = 424,897,953.41
5. Step 5: Solve for x
   x = 424,897,953.41/22,585
6. Step 6: Final answer
   x = 18,813.28