Finding the Fourth Proportional to 22,480.90, 31,024.68 and 12,923.89

Step by Step Solution

1. Step 1: Write the proportion equation
   22,480.90 : 31,024.68 = 12,923.89 : x
2. Step 2: Convert to fraction form
   22,480.90/31,024.68 = 12,923.89/x
3. Step 3: Cross multiply
   22,480.90x = 31,024.68 × 12,923.89
4. Step 4: Simplify right side
   22,480.90x = 400,959,551.61
5. Step 5: Solve for x
   x = 400,959,551.61/22,480.90
6. Step 6: Final answer
   x = 17,835.56