Finding the Fourth Proportional to 22,483.78, 31,028.07 and 12,412.18

Step by Step Solution

1. Step 1: Write the proportion equation
   22,483.78 : 31,028.07 = 12,412.18 : x
2. Step 2: Convert to fraction form
   22,483.78/31,028.07 = 12,412.18/x
3. Step 3: Cross multiply
   22,483.78x = 31,028.07 × 12,412.18
4. Step 4: Simplify right side
   22,483.78x = 385,125,989.89
5. Step 5: Solve for x
   x = 385,125,989.89/22,483.78
6. Step 6: Final answer
   x = 17,129.06