Finding the Fourth Proportional to 22,543.22, 31,111.97 and 12,983.42

Step by Step Solution

1. Step 1: Write the proportion equation
   22,543.22 : 31,111.97 = 12,983.42 : x
2. Step 2: Convert to fraction form
   22,543.22/31,111.97 = 12,983.42/x
3. Step 3: Cross multiply
   22,543.22x = 31,111.97 × 12,983.42
4. Step 4: Simplify right side
   22,543.22x = 403,939,773.54
5. Step 5: Solve for x
   x = 403,939,773.54/22,543.22
6. Step 6: Final answer
   x = 17,918.46