Finding the Fourth Proportional to 22,493.76, 31,041.88 and 12,422.18

Step by Step Solution

1. Step 1: Write the proportion equation
   22,493.76 : 31,041.88 = 12,422.18 : x
2. Step 2: Convert to fraction form
   22,493.76/31,041.88 = 12,422.18/x
3. Step 3: Cross multiply
   22,493.76x = 31,041.88 × 12,422.18
4. Step 4: Simplify right side
   22,493.76x = 385,607,820.90
5. Step 5: Solve for x
   x = 385,607,820.90/22,493.76
6. Step 6: Final answer
   x = 17,142.88