Finding the Fourth Proportional to 22,553, 31,122.38 and 12,481.86

Step by Step Solution

1. Step 1: Write the proportion equation
   22,553 : 31,122.38 = 12,481.86 : x
2. Step 2: Convert to fraction form
   22,553/31,122.38 = 12,481.86/x
3. Step 3: Cross multiply
   22,553x = 31,122.38 × 12,481.86
4. Step 4: Simplify right side
   22,553x = 388,465,190.03
5. Step 5: Solve for x
   x = 388,465,190.03/22,553
6. Step 6: Final answer
   x = 17,224.55