Finding the Fourth Proportional to 22,543.97, 31,113 and 12,984.18

Step by Step Solution

1. Step 1: Write the proportion equation
   22,543.97 : 31,113 = 12,984.18 : x
2. Step 2: Convert to fraction form
   22,543.97/31,113 = 12,984.18/x
3. Step 3: Cross multiply
   22,543.97x = 31,113 × 12,984.18
4. Step 4: Simplify right side
   22,543.97x = 403,976,792.34
5. Step 5: Solve for x
   x = 403,976,792.34/22,543.97
6. Step 6: Final answer
   x = 17,919.51