Finding the Fourth Proportional to 22,485.39, 31,029.40 and 12,414.14

Step by Step Solution

1. Step 1: Write the proportion equation
   22,485.39 : 31,029.40 = 12,414.14 : x
2. Step 2: Convert to fraction form
   22,485.39/31,029.40 = 12,414.14/x
3. Step 3: Cross multiply
   22,485.39x = 31,029.40 × 12,414.14
4. Step 4: Simplify right side
   22,485.39x = 385,203,315.72
5. Step 5: Solve for x
   x = 385,203,315.72/22,485.39
6. Step 6: Final answer
   x = 17,131.27