Finding the Fourth Proportional to 22,574.33, 31,153.69 and 13,621.68

Step by Step Solution

1. Step 1: Write the proportion equation
   22,574.33 : 31,153.69 = 13,621.68 : x
2. Step 2: Convert to fraction form
   22,574.33/31,153.69 = 13,621.68/x
3. Step 3: Cross multiply
   22,574.33x = 31,153.69 × 13,621.68
4. Step 4: Simplify right side
   22,574.33x = 424,365,487.10
5. Step 5: Solve for x
   x = 424,365,487.10/22,574.33
6. Step 6: Final answer
   x = 18,798.59